Funny 11th Birthday T-Shirt - Root 121 Years Old

Black Funny 11th Birthday T-Shirt - Root 121 Years Old main image
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Celebrate a special 11th birthday with this fun and clever t-shirt! The design features a square root symbol with the number 121, followed by the words "Years Old", making it a playful math-themed gag gift. This black t-shirt has a classic fit and is likely made from a comfortable cotton blend, ensuring a soft feel. It's perfect for birthday parties, school events, or everyday wear, showcasing a witty sense of humor. Surprise your favorite 11-year-old with this unique and memorable birthday present!

Tags:

#11th birthday #t-shirt #math humor #gag gift #square root #birthday present #eleven years old #funny shirt #black tee
$35.99 $9.99

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Available Styles:

Variant 1 of Funny 11th Birthday T-Shirt - Root 121 Years Old
Variant 2 of Lucky Fishing Shirt - Funny Fisherman Tee
Variant 3 of Dabbing Taco Graphic Tee - Funny Food Shirt
Variant 4 of Broccoli Graphic Tee - Fresh Veggie Style
Variant 5 of Lawyers In Progress Funny T-Shirt
Variant 6 of Sarcastic Comment Loading Graphic T-Shirt
Variant 7 of Cute But Psycho Graphic T-Shirt
Variant 8 of Virtually Learned Nothing T-Shirt
Variant 9 of Funny Sarcastic T-Shirt: My Silence Means Stupidity
Variant 10 of Non-Fungible Tacos Funny Graphic Tee
Variant 11 of Funny Free Hugs Cactus Graphic T-Shirt
Variant 12 of I Can't I Have Ballet T-Shirt
Variant 13 of Funny Social Interaction T-Shirt - You Read My Shirt
Variant 14 of Warning Spontaneously Talk About Mushrooms T-Shirt
Variant 15 of Miso Happy Cat T-Shirt - Black
Variant 16 of World's Okayest Lesbian Graphic T-Shirt
Variant 17 of I Got One T-Shirt - Funny Couple Graphic Tee
Variant 18 of Camping Mosquitoes Liked T-Shirt
Variant 19 of Dirty Mind Interesting Conversations Graphic T-Shirt
Variant 20 of Cosmic Beauty Frying Pans Graphic T-Shirt
Variant 21 of Funny Flamingo Human Costume Graphic Tee
Variant 22 of Sweating My Kitties Black Graphic Tee
Variant 23 of I Make It Rain Funny Graphic Tee
Variant 24 of Shoot Like A Girl T-Shirt - Funny Sarcastic Tee
Variant 25 of Mrs. Coach T-Shirt
Variant 26 of Funny My Pen Is Bigger Than Yours Graphic Tee
Variant 27 of Funny "Sorry I'm Late" Horse T-Shirt
Variant 28 of Funny Turkey in Disguise T-Shirt - Thanksgiving Humor
Variant 29 of Funny Dragon Graphic T-Shirt - A Day Without Dragons
Variant 30 of Funny Cartoon Face Graphic Black T-Shirt

FAQ

Size Guide

Our tees fit true-to-size. Check the size chart before ordering to ensure a perfect fit.

Shipping Time

Processing 2–3 business days; standard delivery 5–12 business days depending on destination.

Care Instructions

Machine wash cold with like colors. Do not bleach. Tumble dry low. Iron inside-out if needed.