Funny 40th Birthday T-Shirt - How Old is Forty?

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Celebrate turning the big 4-0 with this witty and humorous t-shirt! This black tee features a clever design with the phrase "HOW OLD IS FORTY?" in green. Below, it breaks down 40 years into days, hours, minutes, and seconds in blue, culminating in the bold statement "= OLD" also in blue. This unique shirt is perfect for birthday celebrations, casual wear, or as a gag gift for someone embracing their forties. Made from a comfortable material, it's a fun way to show off your sense of humor and celebrate this milestone birthday. Get ready to make a statement and embrace the 'old' with style!

Tags:

#40th birthday #funny t-shirt #gag gift #milestone birthday #humorous tee #old age #novelty shirt #birthday gift
$35.99 $9.99

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Select Color:

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Available Styles:

Variant 1 of Funny 40th Birthday T-Shirt - How Old is Forty?
Variant 2 of Guru Inside Black T-Shirt - Novelty Tee
Variant 3 of I Heart My Wife Funny Gun Lover T-Shirt
Variant 4 of Rubber Duck T-Shirt - Fun and Quirky Design
Variant 5 of Keep Calm Extra Terrestrial Black T-Shirt
Variant 6 of Roast Beef Pea Soup Funny T-Shirt
Variant 7 of Mechanical Engineer T-Shirt - Never Wrong!
Variant 8 of Tough Girls Don't Need Tonsils Graphic T-Shirt
Variant 9 of Taco Clock Graphic T-Shirt - Novelty Food Tee
Variant 10 of Coffee Dreams T-Shirt - Black Relaxed Fit
Variant 11 of Cat in a Box T-Shirt - "It Still Fits"
Variant 12 of Electronic Technician Husband's Job T-Shirt
Variant 13 of Math Humor T-Shirt - √6241 Years Old Funny Tee
Variant 14 of Cat Eating Hotdog Graphic T-Shirt
Variant 15 of I'm Not Weird T-Shirt
Variant 16 of Funny Cartoon Potato Graphic Black T-Shirt
Variant 17 of Plants Not People Graphic T-Shirt
Variant 18 of Funny Grandma T-Shirt - If Grandma Ain't Happy, Run!
Variant 19 of No Losers Only Wieners Graphic Tee - Black
Variant 20 of Evil Dreams Graphic T-Shirt
Variant 21 of Key of Love Dog Graphic Tee - Novelty Dog Lover Shirt
Variant 22 of Funny Graphic T-Shirt - "It's Like My Mom Always Said"
Variant 23 of Read More Booooooks T-Shirt
Variant 24 of Caution 50 Year Old T-Shirt - Funny Birthday Tee
Variant 25 of I Love Guidos T-Shirt - Funny Novelty Tee
Variant 26 of I Love the Sound You Make Novelty Graphic T-Shirt
Variant 27 of Electronics Design Engineer Graphic T-Shirt
Variant 28 of Potato Puns AP-PEEL To Me Graphic T-Shirt
Variant 29 of Dogs and Coffee Graphic Tee - Funny Novelty Shirt
Variant 30 of Proud Dad of a Freaking Awesome Teacher 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.