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Pi Day Shirts: Smart, Funny Tees for March 14

Clever, funny designs for students, teachers, and STEM fans to celebrate March 14.

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Our top picks

Funny Sarcastic Shirt - I'm Not Arguing I'm Just Explaining Why I'm Right T-Shirt

Funny Sarcastic Shirt - I'm Not Arguing I'm Just Explaining Why I'm Right T-Shirt

$24.00
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I Figure If a Girl Wants to Be a Legend

I Figure If a Girl Wants to Be a Legend

$24.00
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Rock Paper Scissors let's settle this like men

Rock Paper Scissors let's settle this like men

$24.00
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My Age Don't Allow Me Cry For Love Funny Money Quote T-Shirt

My Age Don't Allow Me Cry For Love Funny Money Quote T-Shirt

$24.00
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Not A Good Cook But I Cooked My Life Funny Quote T-Shirt

Not A Good Cook But I Cooked My Life Funny Quote T-Shirt

$24.00
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Single Because My Standards Are Higher - Funny Sassy Quote Graphic Tee

Single Because My Standards Are Higher - Funny Sassy Quote Graphic Tee

$24.00
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Focus On Yourself - Motivational Self-Care Quote Graphic Tee

Focus On Yourself - Motivational Self-Care Quote Graphic Tee

$24.00
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I Can Explain It But I Can't Understand It For You

I Can Explain It But I Can't Understand It For You

$24.00
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Practicing Social Distancing For Years

Practicing Social Distancing For Years

$24.00
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Funny Introvert Dog Lover Shirt - Introverted But Willing To Discuss Dogs T-Shirt

Funny Introvert Dog Lover Shirt - Introverted But Willing To Discuss Dogs T-Shirt

$24.00
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It's an Architect Thing You Wouldn't Understand

It's an Architect Thing You Wouldn't Understand

$21.99
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It's a Pharmacist Thing You Wouldn't Understand

It's a Pharmacist Thing You Wouldn't Understand

$21.99
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It's a Psychologist Thing You Wouldn't Understand

It's a Psychologist Thing You Wouldn't Understand

$21.99
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It's a Plumber Thing You Wouldn't Understand

It's a Plumber Thing You Wouldn't Understand

$25.99
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It's a Crochet Thing You Wouldn't Understand

It's a Crochet Thing You Wouldn't Understand

$21.99
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It's a Reading Thing You Wouldn't Understand

It's a Reading Thing You Wouldn't Understand

$21.99
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It's a Paintball Thing You Wouldn't Understand

It's a Paintball Thing You Wouldn't Understand

$21.99
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It's a Frog Thing You Wouldn't Understand

It's a Frog Thing You Wouldn't Understand

$21.99
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It's a Donkey Thing You Wouldn't Understand

It's a Donkey Thing You Wouldn't Understand

$21.99
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It's a Ferret Thing You Wouldn't Understand

It's a Ferret Thing You Wouldn't Understand

$21.99
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It's a Dragon Thing You Wouldn't Understand

It's a Dragon Thing You Wouldn't Understand

$21.99
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It's a Giraffe Thing You Wouldn't Understand

It's a Giraffe Thing You Wouldn't Understand

$21.99
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It's a Jellyfish Thing You Wouldn't Understand

It's a Jellyfish Thing You Wouldn't Understand

$25.99
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It's a Veterinarian Thing You Wouldn't Understand

It's a Veterinarian Thing You Wouldn't Understand

$21.99
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It's a Jellyfish Thing — Racerback Tank II

It's a Jellyfish Thing — Racerback Tank II

$25.99
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It's a Jellyfish Thing — Classic Tee

It's a Jellyfish Thing — Classic Tee

$21.99
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It's a Jellyfish Thing — Gift Layout Tee

It's a Jellyfish Thing — Gift Layout Tee

$21.99
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It's a Jellyfish Thing — Bold Gift Tee

It's a Jellyfish Thing — Bold Gift Tee

$21.99
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It's a Jellyfish Thing — Classic Tee + Tagline

It's a Jellyfish Thing — Classic Tee + Tagline

$21.99
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It's a Jellyfish Thing — Gift Tee + Tagline

It's a Jellyfish Thing — Gift Tee + Tagline

$21.99
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It's a Jellyfish Thing — Roomy Gift Tee

It's a Jellyfish Thing — Roomy Gift Tee

$21.99
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It's a Jellyfish Thing — Handwritten Tank

It's a Jellyfish Thing — Handwritten Tank

$25.99
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It's a Nurse Thing You Wouldn't Understand

It's a Nurse Thing You Wouldn't Understand

$22.99
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It's a Nurse Thing — Best Seller Print

It's a Nurse Thing — Best Seller Print

$21.99
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It's a Nurse Thing — ETOH PO TID PRN

It's a Nurse Thing — ETOH PO TID PRN

$22.99
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It's an Intensive Care Nurse Thing You Wouldn't Understand

It's an Intensive Care Nurse Thing You Wouldn't Understand

$21.99
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It's a Critical Care Nurse Thing You Wouldn't Understand

It's a Critical Care Nurse Thing You Wouldn't Understand

$21.99
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It's a Plastic Surgery Nurse Thing You Wouldn't Understand

It's a Plastic Surgery Nurse Thing You Wouldn't Understand

$21.99
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It's a Med Surg Nursing Thing You Wouldn't Understand

It's a Med Surg Nursing Thing You Wouldn't Understand

$21.99
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It's a Med Surg Nursing Thing — Alternate Print

It's a Med Surg Nursing Thing — Alternate Print

$21.99
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It's a Veterinarian Thing — Veterinary Print

It's a Veterinarian Thing — Veterinary Print

$21.99
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It's an Architect Thing — Drafting Print

It's an Architect Thing — Drafting Print

$21.99
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It's a Teacher Thing You Wouldn't Understand

It's a Teacher Thing You Wouldn't Understand

$22.99
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It's a Mechanic Thing You Wouldn't Understand

It's a Mechanic Thing You Wouldn't Understand

$22.99
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It's a Mechanic Thing — Workshop Print

It's a Mechanic Thing — Workshop Print

$21.99
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It's a Mechanic Thing — Alternate Layout

It's a Mechanic Thing — Alternate Layout

$21.99
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It's a Mechanic Thing — Cylinder Print

It's a Mechanic Thing — Cylinder Print

$21.99
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It's a Mechanic Thing — Illustrated Print

It's a Mechanic Thing — Illustrated Print

$21.99
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It's a Diesel Thing You Wouldn't Understand

It's a Diesel Thing You Wouldn't Understand

$21.99
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It's a Firefighter Thing You Wouldn't Understand

It's a Firefighter Thing You Wouldn't Understand

$21.99
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It's a Firefighter Thing — Fireman Print

It's a Firefighter Thing — Fireman Print

$21.99
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It's a Firefighter Thing — Women's Slim Fit

It's a Firefighter Thing — Women's Slim Fit

$25.99
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It's a Photography Thing You Wouldn't Understand

It's a Photography Thing You Wouldn't Understand

$21.99
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It's a Portrait Photographer Thing You Wouldn't Understand

It's a Portrait Photographer Thing You Wouldn't Understand

$21.99
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It's a Macro Photographer Thing You Wouldn't Understand

It's a Macro Photographer Thing You Wouldn't Understand

$21.99
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It is a Bear Thing You Wouldn't Understand

It is a Bear Thing You Wouldn't Understand

$21.99
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It's a Quilting Thing You Wouldn't Understand

It's a Quilting Thing You Wouldn't Understand

$21.99
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It's an Architect Thing You Wouldn't Even Understand

It's an Architect Thing You Wouldn't Even Understand

$21.99
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It's an Architecture Thing You Wouldn't Understand

It's an Architecture Thing You Wouldn't Understand

$21.99
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It's an Architect Thing — Architecture Print

It's an Architect Thing — Architecture Print

$21.99
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It's a Pharmacist Thing — Druggist Joke Print

It's a Pharmacist Thing — Druggist Joke Print

$21.99
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It's a Chef Thing You Wouldn't Understand

It's a Chef Thing You Wouldn't Understand

$21.99
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It's a Sous Chef Thing You Wouldn't Understand

It's a Sous Chef Thing You Wouldn't Understand

$21.99
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It's an Electrician Thing You Wouldn't Understand — Beer Print

It's an Electrician Thing You Wouldn't Understand — Beer Print

$21.99
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It's an Electrician Thing — Beer Print No.2

It's an Electrician Thing — Beer Print No.2

$21.99
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It's an Electrician Thing — Beer Lover Print

It's an Electrician Thing — Beer Lover Print

$21.99
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It's an Electrician Thing — Drinker Print

It's an Electrician Thing — Drinker Print

$21.99
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It's an Electrician Thing — Drinker Print No.2

It's an Electrician Thing — Drinker Print No.2

$21.99
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It's a Gardening Thing You Wouldn't Understand

It's a Gardening Thing You Wouldn't Understand

$21.99
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It's a Gardening Thing — Second Print

It's a Gardening Thing — Second Print

$21.99
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It's a Fishing Thing You Wouldn't Understand

It's a Fishing Thing You Wouldn't Understand

$21.99
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It's a Carolina Dog Thing You Wouldn't Understand

It's a Carolina Dog Thing You Wouldn't Understand

$21.99
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It's a Basenji Thing You Wouldn't Understand

It's a Basenji Thing You Wouldn't Understand

$21.99
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It's a Shih Tzu Thing You Wouldn't Understand — Sweatshirt

It's a Shih Tzu Thing You Wouldn't Understand — Sweatshirt

$33.99
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It's a Shih Poo Thing You Wouldn't Understand

It's a Shih Poo Thing You Wouldn't Understand

$21.99
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It's a Skunk Thing You Wouldn't Understand — Sweatshirt

It's a Skunk Thing You Wouldn't Understand — Sweatshirt

$33.99
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It's a Bernedoodle Thing You Wouldn't Understand

It's a Bernedoodle Thing You Wouldn't Understand

$21.99
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It's a Biewer Terrier Thing You Wouldn't Understand

It's a Biewer Terrier Thing You Wouldn't Understand

$21.99
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It's a Basset Hound Thing You Wouldn't Understand

It's a Basset Hound Thing You Wouldn't Understand

$21.99
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It's a Basset Hound Thing — Second Print

It's a Basset Hound Thing — Second Print

$21.99
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It's a Saint Berdoodle Thing You Wouldn't Understand

It's a Saint Berdoodle Thing You Wouldn't Understand

$21.99
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It's a Saint Bernard Thing You Wouldn't Understand

It's a Saint Bernard Thing You Wouldn't Understand

$21.99
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It's a Saint Bernard Thing — Second Print

It's a Saint Bernard Thing — Second Print

$21.99
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It's a St Bernard Thing You Wouldn't Understand — Hoodie

It's a St Bernard Thing You Wouldn't Understand — Hoodie

$36.99
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It's a Bichon Frise Thing You Wouldn't Understand

It's a Bichon Frise Thing You Wouldn't Understand

$21.99
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It's a Bichon Frise Thing — Second Print

It's a Bichon Frise Thing — Second Print

$21.99
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It's a Scottish Terrier Thing You Wouldn't Understand

It's a Scottish Terrier Thing You Wouldn't Understand

$21.99
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It's a Scottish Terrier Thing — Second Print

It's a Scottish Terrier Thing — Second Print

$21.99
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It's a Bearded Collie Thing You Wouldn't Understand

It's a Bearded Collie Thing You Wouldn't Understand

$21.99
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It's a Rat Terrier Thing You Wouldn't Understand

It's a Rat Terrier Thing You Wouldn't Understand

$21.99
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It's a Rat Terrier Thing — Second Print

It's a Rat Terrier Thing — Second Print

$21.99
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It's a Shiba Inu Thing You Wouldn't Understand

It's a Shiba Inu Thing You Wouldn't Understand

$21.99
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It's a Shiba Inu Thing — Second Print

It's a Shiba Inu Thing — Second Print

$21.99
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It's a Samoyed Thing You Wouldn't Understand

It's a Samoyed Thing You Wouldn't Understand

$21.99
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It's a Samoyed Thing — Illustrated Print

It's a Samoyed Thing — Illustrated Print

$21.99
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It's a Basenji Thing — Illustrated Print

It's a Basenji Thing — Illustrated Print

$21.99
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It's a Maltipoo Thing You Wouldn't Understand

It's a Maltipoo Thing You Wouldn't Understand

$21.99
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It's a Maltipoo Thing — Second Print

It's a Maltipoo Thing — Second Print

$21.99
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It's a Peekapoo Thing You Wouldn't Understand

It's a Peekapoo Thing You Wouldn't Understand

$21.99
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It's a Cavapoo Thing You Wouldn't Understand

It's a Cavapoo Thing You Wouldn't Understand

$21.99
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It's a Corgidor Thing You Wouldn't Understand

It's a Corgidor Thing You Wouldn't Understand

$21.99
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It's a Mastador Thing You Wouldn't Understand

It's a Mastador Thing You Wouldn't Understand

$21.99
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It's a Shih Poo Thing — Second Print

It's a Shih Poo Thing — Second Print

$21.99
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It's a Skunk Thing You Wouldn't Understand — T-Shirt

It's a Skunk Thing You Wouldn't Understand — T-Shirt

$21.99
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It's a Skunk Thing — Skunk Lover Print

It's a Skunk Thing — Skunk Lover Print

$21.99
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It's a Skunk Thing — Skunk Lover Print No.2

It's a Skunk Thing — Skunk Lover Print No.2

$21.99
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It's a Malayan Tiger Thing You Wouldn't Understand

It's a Malayan Tiger Thing You Wouldn't Understand

$21.99
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It's a Raccoon Thing You Wouldn't Understand

It's a Raccoon Thing You Wouldn't Understand

$21.99
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It's a Squirrel Thing You Wouldn't Understand — Premium Hoodie

It's a Squirrel Thing You Wouldn't Understand — Premium Hoodie

$40.99
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It's a Gerbil Thing You Wouldn't Understand

It's a Gerbil Thing You Wouldn't Understand

$21.99
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It's a Hippo Thing You Wouldn't Understand

It's a Hippo Thing You Wouldn't Understand

$21.99
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It's a Kangaroo Thing You Wouldn't Understand

It's a Kangaroo Thing You Wouldn't Understand

$21.99
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It's a Kangaroo Thing — Second Print

It's a Kangaroo Thing — Second Print

$21.99
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It's a Tree Kangaroo Thing You Wouldn't Understand

It's a Tree Kangaroo Thing You Wouldn't Understand

$21.99
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It's a Horned Frog Thing You Wouldn't Understand

It's a Horned Frog Thing You Wouldn't Understand

$21.99
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It's a Dinosaur Thing You Wouldn't Understand

It's a Dinosaur Thing You Wouldn't Understand

$21.99
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It's a Nigerian Goat Thing You Wouldn't Understand

It's a Nigerian Goat Thing You Wouldn't Understand

$18.99
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It's a Nigerian Goat Thing — Goat Lover Print

It's a Nigerian Goat Thing — Goat Lover Print

$21.99
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It's a Nigerian Goat Thing — Second Print

It's a Nigerian Goat Thing — Second Print

$21.99
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It's a Nigerian Goat Thing — Women's Slim Fit

It's a Nigerian Goat Thing — Women's Slim Fit

$25.99
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It's a Coaching Thing You Wouldn't Understand — Basketball

It's a Coaching Thing You Wouldn't Understand — Basketball

$21.99
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It's a Halloween Thing You Wouldn't Understand

It's a Halloween Thing You Wouldn't Understand

$21.99
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It's a Trucker Thing You Wouldn't Understand

It's a Trucker Thing You Wouldn't Understand

$21.99
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It's a Trucker Thing — Jersey Tank No.2

It's a Trucker Thing — Jersey Tank No.2

$25.99
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It's a Carpenter Thing You Wouldn't Understand

It's a Carpenter Thing You Wouldn't Understand

$21.99
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It's a Carpenter Thing — Construction Print

It's a Carpenter Thing — Construction Print

$21.99
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It's a Carpenter Thing — Third Print

It's a Carpenter Thing — Third Print

$21.99
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It's a Woodworking Thing You Wouldn't Understand

It's a Woodworking Thing You Wouldn't Understand

$21.99
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It's a Woodworker Thing You Wouldn't Understand

It's a Woodworker Thing You Wouldn't Understand

$21.99
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It's a Logger Thing You Wouldn't Understand

It's a Logger Thing You Wouldn't Understand

$21.99
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It's a Pharmacist Thing — Third Print

It's a Pharmacist Thing — Third Print

$21.99
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It's a Pharmacist Thing — Fourth Print

It's a Pharmacist Thing — Fourth Print

$21.99
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It's a Clinical Pharmacist Thing You Wouldn't Understand

It's a Clinical Pharmacist Thing You Wouldn't Understand

$21.99
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It's a Clinical Psychologist Thing You Wouldn't Understand

It's a Clinical Psychologist Thing You Wouldn't Understand

$21.99
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It's a Bartender Thing You Wouldn't Understand

It's a Bartender Thing You Wouldn't Understand

$21.99
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It's a Bank Teller Thing You Wouldn't Understand — Sweatshirt

It's a Bank Teller Thing You Wouldn't Understand — Sweatshirt

$33.99
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It's a Drone Thing You Wouldn't Understand

It's a Drone Thing You Wouldn't Understand

$21.99
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It's a Conceptual Photographer Thing You Wouldn't Understand

It's a Conceptual Photographer Thing You Wouldn't Understand

$21.99
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It's an Architect Thing — Fourth Print

It's an Architect Thing — Fourth Print

$21.99
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It's an Architect Thing — Fifth Print

It's an Architect Thing — Fifth Print

$21.99
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It's a Hockey Thing You Wouldn't Understand

It's a Hockey Thing You Wouldn't Understand

$21.99
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It's a Football Thing You Wouldn't Understand

It's a Football Thing You Wouldn't Understand

$21.99
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It's a Coaching Thing — Second Basketball Print

It's a Coaching Thing — Second Basketball Print

$21.99
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It's a Canoe Thing You Wouldn't Understand

It's a Canoe Thing You Wouldn't Understand

$21.99
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It's a Horse Racing Thing You Wouldn't Understand

It's a Horse Racing Thing You Wouldn't Understand

$21.99
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It's a Plumber Thing — Second Racerback Tank

It's a Plumber Thing — Second Racerback Tank

$25.99
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It's a Squirrel Thing You Wouldn't Understand — T-Shirt

It's a Squirrel Thing You Wouldn't Understand — T-Shirt

$21.99
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It's a Sloth Thing You Wouldn't Understand — Sweatshirt

It's a Sloth Thing You Wouldn't Understand — Sweatshirt

$33.99
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It's a Groundhog Thing You Wouldn't Understand

It's a Groundhog Thing You Wouldn't Understand

$21.99
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It's a Groundhog Thing — Marmot Print

It's a Groundhog Thing — Marmot Print

$21.99
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It's a Komodo Dragon Thing You Wouldn't Understand

It's a Komodo Dragon Thing You Wouldn't Understand

$21.99
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It's a Maltese Thing You Wouldn't Understand

It's a Maltese Thing You Wouldn't Understand

$21.99
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It's a Tree Kangaroo Thing — Second Print

It's a Tree Kangaroo Thing — Second Print

$21.99
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It's a Gerbil Thing — Gerbil Owners Print

It's a Gerbil Thing — Gerbil Owners Print

$21.99
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It's a Skunk Thing — Sweatshirt No.2

It's a Skunk Thing — Sweatshirt No.2

$33.99
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It's an Airedale Terrier Thing You Wouldn't Understand

It's an Airedale Terrier Thing You Wouldn't Understand

$21.99
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It's an Airedale Terrier Thing — Second Print

It's an Airedale Terrier Thing — Second Print

$21.99
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It's an Irish Terrier Thing You Wouldn't Understand

It's an Irish Terrier Thing You Wouldn't Understand

$21.99
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It's a Doberman Pinscher Thing You Wouldn't Understand

It's a Doberman Pinscher Thing You Wouldn't Understand

$21.99
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It's a German Shorthaired Pointer Thing You Wouldn't Understand

It's a German Shorthaired Pointer Thing You Wouldn't Understand

$21.99
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It's an Alaskan Malamute Thing You Wouldn't Understand

It's an Alaskan Malamute Thing You Wouldn't Understand

$21.99
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It's a Carpenter Thing — Fourth Print

It's a Carpenter Thing — Fourth Print

$21.99
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It's a Horse Thing You Wouldn't Understand

It's a Horse Thing You Wouldn't Understand

$21.99
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It's a Stallion Thing You Wouldn't Understand

It's a Stallion Thing You Wouldn't Understand

$21.99
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It's a Horse Racing Thing — Second Print

It's a Horse Racing Thing — Second Print

$21.99
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It's a Rodeo Thing You Wouldn't Understand

It's a Rodeo Thing You Wouldn't Understand

$21.99
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It's a Guinea Pig Thing You Wouldn't Understand — Sweatshirt

It's a Guinea Pig Thing You Wouldn't Understand — Sweatshirt

$33.99
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It's a Guinea Pig Thing — Second Sweatshirt

It's a Guinea Pig Thing — Second Sweatshirt

$33.99
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It's a Guinea Pig Thing — Third Sweatshirt

It's a Guinea Pig Thing — Third Sweatshirt

$33.99
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It's a Cuy Thing You Wouldn't Understand — Sweatshirt

It's a Cuy Thing You Wouldn't Understand — Sweatshirt

$33.99
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It's a Red Panda Thing You Wouldn't Understand

It's a Red Panda Thing You Wouldn't Understand

$21.99
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It's a Cow Thing You Wouldn't Understand

It's a Cow Thing You Wouldn't Understand

$21.99
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It's a Cow Thing — Fourth of July Print

It's a Cow Thing — Fourth of July Print

$21.99
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It's a Groundhog Thing — Third Print

It's a Groundhog Thing — Third Print

$21.99
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It's a Postal Worker Thing You Wouldn't Understand

It's a Postal Worker Thing You Wouldn't Understand

$21.99
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It's a Postal Worker Thing — Mailman Print

It's a Postal Worker Thing — Mailman Print

$21.99
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It's a Fabricator Thing You Wouldn't Even Understand

It's a Fabricator Thing You Wouldn't Even Understand

$21.99
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It's a Fabricator Thing — Second Print

It's a Fabricator Thing — Second Print

$21.99
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It's a Master Plumber Thing You Wouldn't Understand — Tank

It's a Master Plumber Thing You Wouldn't Understand — Tank

$25.99
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It's a Pharmacy Thing You Wouldn't Understand

It's a Pharmacy Thing You Wouldn't Understand

$21.99
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It's a Pharmacist Thing — Funny Pharmacy Print

It's a Pharmacist Thing — Funny Pharmacy Print

$21.99
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It's a Trucker Thing — Trucking Print

It's a Trucker Thing — Trucking Print

$21.99
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It's a Drone Thing — Copter Pilot Print

It's a Drone Thing — Copter Pilot Print

$21.99
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It's a Basketball Thing You Wouldn't Understand

It's a Basketball Thing You Wouldn't Understand

$21.99
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It's a Baseball Thing You Wouldn't Understand

It's a Baseball Thing You Wouldn't Understand

$21.99
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It's a Baseball Thing — Second Print

It's a Baseball Thing — Second Print

$21.99
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It's a Cricket Thing You Wouldn't Understand

It's a Cricket Thing You Wouldn't Understand

$21.99
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It's a Table Football Thing You Wouldn't Understand

It's a Table Football Thing You Wouldn't Understand

$21.99
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It's a Disc Golf Thing You Wouldn't Understand — Sweatshirt

It's a Disc Golf Thing You Wouldn't Understand — Sweatshirt

$33.99
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It's a Kayaking Thing You Wouldn't Understand

It's a Kayaking Thing You Wouldn't Understand

$21.99
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It's a Paintball Thing — Third Print

It's a Paintball Thing — Third Print

$21.99
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It's a Havanese Thing You Wouldn't Understand

It's a Havanese Thing You Wouldn't Understand

$21.99
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It's a Great Pyrenees Thing You Wouldn't Understand

It's a Great Pyrenees Thing You Wouldn't Understand

$25.99
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It's a Whoodle Thing You Wouldn't Understand

It's a Whoodle Thing You Wouldn't Understand

$23.99
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It's a Westiepoo Thing You Wouldn't Understand

It's a Westiepoo Thing You Wouldn't Understand

$23.99
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It's a Westiepoo Thing — Second Print

It's a Westiepoo Thing — Second Print

$23.99
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It's an Airedale Terrier Thing — Third Print

It's an Airedale Terrier Thing — Third Print

$21.99
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It's a Doberman Pinscher Thing — Second Print

It's a Doberman Pinscher Thing — Second Print

$21.99
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It's an Owl Thing You Wouldn't Understand — Sweatshirt

It's an Owl Thing You Wouldn't Understand — Sweatshirt

$33.99
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It's an Otter Thing You Wouldn't Understand — Jersey Tank

It's an Otter Thing You Wouldn't Understand — Jersey Tank

$25.99
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It's a Honey Badger Thing You Wouldn't Understand

It's a Honey Badger Thing You Wouldn't Understand

$21.99
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It's a Guinea Pig Thing — Cavy Fan Print

It's a Guinea Pig Thing — Cavy Fan Print

$21.99
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It's a Squirrel Thing — Squirrel Lover Print

It's a Squirrel Thing — Squirrel Lover Print

$21.99
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It's a Sloth Thing You Wouldn't Understand — T-Shirt

It's a Sloth Thing You Wouldn't Understand — T-Shirt

$21.99
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It's an Anime Thing You Wouldn't Understand — Sweatshirt

It's an Anime Thing You Wouldn't Understand — Sweatshirt

$33.99
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It's a Welder Thing You Wouldn't Understand

It's a Welder Thing You Wouldn't Understand

$21.99
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It's a Sewing Thing You Wouldn't Understand

It's a Sewing Thing You Wouldn't Understand

$21.99
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It's a Paintball Thing — Second Print

It's a Paintball Thing — Second Print

$21.99
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It's a Camel Thing You Wouldn't Understand

It's a Camel Thing You Wouldn't Understand

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It's a Lizard Thing You Wouldn't Understand

It's a Lizard Thing You Wouldn't Understand

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It's a Teddybear Thing You Wouldn't Understand

It's a Teddybear Thing You Wouldn't Understand

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It's a Water Polo Thing You Wouldn't Understand

It's a Water Polo Thing You Wouldn't Understand

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It's a Bear Thing — First Name Print

It's a Bear Thing — First Name Print

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It's a Frog Thing — Frog Lovers Print

It's a Frog Thing — Frog Lovers Print

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It's a Frog Thing — Frog Lovers Print No.2

It's a Frog Thing — Frog Lovers Print No.2

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It's a Crochet Thing — Crocheter Print

It's a Crochet Thing — Crocheter Print

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It's a Paintball Thing — Women's Cut

It's a Paintball Thing — Women's Cut

$21.99
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It's a Mini Golf Thing You Wouldn't Understand

It's a Mini Golf Thing You Wouldn't Understand

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It's a Secretary Thing You Wouldn't Understand — Hoodie

It's a Secretary Thing You Wouldn't Understand — Hoodie

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It's a Saxophone Thing You Wouldn't Understand

It's a Saxophone Thing You Wouldn't Understand

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It's a Hockey Coach Thing You Wouldn't Understand

It's a Hockey Coach Thing You Wouldn't Understand

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It's a Panda Thing You Wouldn't Understand

It's a Panda Thing You Wouldn't Understand

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It's a Chess Thing You Wouldn't Understand — Women's Tee

It's a Chess Thing You Wouldn't Understand — Women's Tee

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It's a Staffordshire Thing You Wouldn't Understand

It's a Staffordshire Thing You Wouldn't Understand

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It's a Dentist Thing You Wouldn't Understand

It's a Dentist Thing You Wouldn't Understand

$22.99
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It's an Engineer Thing You Wouldn't Understand

It's an Engineer Thing You Wouldn't Understand

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It's a Programmer Thing You Wouldn't Understand

It's a Programmer Thing You Wouldn't Understand

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It's a Physicist Thing You Wouldn't Understand

It's a Physicist Thing You Wouldn't Understand

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It's a Botanist Thing You Wouldn't Understand

It's a Botanist Thing You Wouldn't Understand

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It's a Librarian Thing You Wouldn't Understand

It's a Librarian Thing You Wouldn't Understand

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It's a Farmer Thing You Wouldn't Understand

It's a Farmer Thing You Wouldn't Understand

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It's a Trucker Thing You Wouldn't Understand — Second Print

It's a Trucker Thing You Wouldn't Understand — Second Print

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It's a Roofer Thing You Wouldn't Understand

It's a Roofer Thing You Wouldn't Understand

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It's a Locksmith Thing You Wouldn't Understand

It's a Locksmith Thing You Wouldn't Understand

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It's a Janitor Thing You Wouldn't Understand

It's a Janitor Thing You Wouldn't Understand

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It's a Barber Thing You Wouldn't Understand

It's a Barber Thing You Wouldn't Understand

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It's a Stylist Thing You Wouldn't Understand

It's a Stylist Thing You Wouldn't Understand

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It's an Inspector Thing You Wouldn't Understand

It's an Inspector Thing You Wouldn't Understand

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It's a Dispatcher Thing You Wouldn't Understand

It's a Dispatcher Thing You Wouldn't Understand

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It's a Deputy Thing You Wouldn't Understand

It's a Deputy Thing You Wouldn't Understand

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It's a Detective Thing You Wouldn't Understand — Hoodie

It's a Detective Thing You Wouldn't Understand — Hoodie

$44.99
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It's a Fireman Thing You Wouldn't Understand

It's a Fireman Thing You Wouldn't Understand

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It's a Lifeguard Thing You Wouldn't Understand

It's a Lifeguard Thing You Wouldn't Understand

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It's a Urologist Thing You Wouldn't Understand

It's a Urologist Thing You Wouldn't Understand

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It's a Gynecology Thing You Wouldn't Understand

It's a Gynecology Thing You Wouldn't Understand

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It's an Optician Thing You Wouldn't Understand

It's an Optician Thing You Wouldn't Understand

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It's a Broker Thing You Wouldn't Understand

It's a Broker Thing You Wouldn't Understand

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It's a Coach Thing You Wouldn't Understand

It's a Coach Thing You Wouldn't Understand

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It's a Softball Thing You Wouldn't Understand

It's a Softball Thing You Wouldn't Understand

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It's a Hockey Thing You Wouldn't Understand — Second Print

It's a Hockey Thing You Wouldn't Understand — Second Print

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It's a Water Polo Thing You Wouldn't Understand — Second Print

It's a Water Polo Thing You Wouldn't Understand — Second Print

$22.99
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It's a Running Thing You Wouldn't Understand

It's a Running Thing You Wouldn't Understand

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It's a Skating Thing You Wouldn't Understand

It's a Skating Thing You Wouldn't Understand

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It's a Karate Thing You Wouldn't Understand

It's a Karate Thing You Wouldn't Understand

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It's a Capoeira Thing You Wouldn't Understand

It's a Capoeira Thing You Wouldn't Understand

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It's a Motocross Thing You Wouldn't Understand

It's a Motocross Thing You Wouldn't Understand

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It's a Surfing Thing You Wouldn't Understand

It's a Surfing Thing You Wouldn't Understand

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It's a Diving Thing You Wouldn't Understand

It's a Diving Thing You Wouldn't Understand

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It's a Sailing Thing You Wouldn't Understand

It's a Sailing Thing You Wouldn't Understand

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It's a Rafting Thing You Wouldn't Understand

It's a Rafting Thing You Wouldn't Understand

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It's a Rodeo Thing You Wouldn't Understand — Second Print

It's a Rodeo Thing You Wouldn't Understand — Second Print

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It's a Dancer Thing You Wouldn't Understand

It's a Dancer Thing You Wouldn't Understand

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It's a Violin Thing You Wouldn't Understand

It's a Violin Thing You Wouldn't Understand

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It's a Guitarist Thing You Wouldn't Understand

It's a Guitarist Thing You Wouldn't Understand

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It's a Clarinet Thing You Wouldn't Understand

It's a Clarinet Thing You Wouldn't Understand

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It's a Flute Thing You Wouldn't Understand

It's a Flute Thing You Wouldn't Understand

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It's an Oboe Thing You Wouldn't Understand

It's an Oboe Thing You Wouldn't Understand

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It's a Saxophone Thing You Wouldn't Understand — Plain

It's a Saxophone Thing You Wouldn't Understand — Plain

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It's a Pizza Thing You Wouldn't Understand

It's a Pizza Thing You Wouldn't Understand

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It's a Pineapple Thing You Wouldn't Understand

It's a Pineapple Thing You Wouldn't Understand

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It's a Doctor Thing You Wouldn't Understand

It's a Doctor Thing You Wouldn't Understand

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It's a Lawyer Thing You Wouldn't Understand

It's a Lawyer Thing You Wouldn't Understand

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It's a Chemist Thing You Wouldn't Understand

It's a Chemist Thing You Wouldn't Understand

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It's a Scientist Thing You Wouldn't Understand

It's a Scientist Thing You Wouldn't Understand

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It's a Geologist Thing You Wouldn't Understand

It's a Geologist Thing You Wouldn't Understand

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It's an Economist Thing You Wouldn't Understand

It's an Economist Thing You Wouldn't Understand

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It's a Miner Thing You Wouldn't Understand

It's a Miner Thing You Wouldn't Understand

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It's a Fisherman Thing You Wouldn't Understand

It's a Fisherman Thing You Wouldn't Understand

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It's a Deckhand Thing You Wouldn't Understand

It's a Deckhand Thing You Wouldn't Understand

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It's a Welder Thing You Wouldn't Understand — Second Print

It's a Welder Thing You Wouldn't Understand — Second Print

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It's a Logger Thing You Wouldn't Understand — Second Print

It's a Logger Thing You Wouldn't Understand — Second Print

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It's a Plumber Thing You Wouldn't Understand — Plain Tee

It's a Plumber Thing You Wouldn't Understand — Plain Tee

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It's a Manager Thing You Wouldn't Understand

It's a Manager Thing You Wouldn't Understand

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It's a Director Thing You Wouldn't Understand

It's a Director Thing You Wouldn't Understand

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It's a Producer Thing You Wouldn't Understand

It's a Producer Thing You Wouldn't Understand

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It's a Designer Thing You Wouldn't Understand

It's a Designer Thing You Wouldn't Understand

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It's a Reporter Thing You Wouldn't Understand

It's a Reporter Thing You Wouldn't Understand

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It's a Trainer Thing You Wouldn't Understand

It's a Trainer Thing You Wouldn't Understand

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It's an Instructor Thing You Wouldn't Understand

It's an Instructor Thing You Wouldn't Understand

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It's a Volleyball Thing You Wouldn't Understand

It's a Volleyball Thing You Wouldn't Understand

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It's a Swimming Thing You Wouldn't Understand

It's a Swimming Thing You Wouldn't Understand

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It's a Diver Thing You Wouldn't Understand

It's a Diver Thing You Wouldn't Understand

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It's a Boxing Thing You Wouldn't Understand

It's a Boxing Thing You Wouldn't Understand

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It's a Taekwondo Thing You Wouldn't Understand

It's a Taekwondo Thing You Wouldn't Understand

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It's a Bowling Thing You Wouldn't Understand

It's a Bowling Thing You Wouldn't Understand

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It's a Supercross Thing You Wouldn't Understand

It's a Supercross Thing You Wouldn't Understand

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It's a Supermoto Thing You Wouldn't Understand

It's a Supermoto Thing You Wouldn't Understand

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It's a Paintball Thing You Wouldn't Understand — Plain

It's a Paintball Thing You Wouldn't Understand — Plain

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It's a Cello Thing You Wouldn't Understand

It's a Cello Thing You Wouldn't Understand

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It's a Trombone Thing You Wouldn't Understand

It's a Trombone Thing You Wouldn't Understand

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It's a Tuba Thing You Wouldn't Understand

It's a Tuba Thing You Wouldn't Understand

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It's a Gaming Thing You Wouldn't Understand

It's a Gaming Thing You Wouldn't Understand

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It's a Camping Thing You Wouldn't Understand

It's a Camping Thing You Wouldn't Understand

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It's a Genealogy Thing You Wouldn't Understand

It's a Genealogy Thing You Wouldn't Understand

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It's a Taylor Thing You Wouldn't Understand

It's a Taylor Thing You Wouldn't Understand

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Why Pi Day shirts are a yearly favorite

Every March 14, schools and STEM lovers celebrate Pi Day. A funny pi-themed tee is an easy, festive way for teachers and students to join in — and it’s a thoughtful gift for the math nerd in your life.

Popular Pi Day design ideas

  • "Easy as 3.14" and pi-symbol puns
  • "Come to the math side" crossover jokes
  • Pie-and-pi visual gags

Ready to shop pi day shirt?

Senprints has hundreds more designs — pick your size and color at checkout.

Browse on Senprints →

Frequently asked questions

When is Pi Day?

Pi Day is March 14 (3/14). Order a couple of weeks ahead so your shirt arrives in time to celebrate.

Are these good for a class or group?

Yes — Pi Day tees are popular for math classes, STEM clubs, and teacher teams. Browse the collection for matching options.

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