Keep Calm and Stay Rational Funny Pi T-Shirt

Posted in Funny
Keep Calm and Stay Rational Irrational Funny Math Geek T-Shirt

This bright and bold graphic in red, sea green, and white, reads "Keep Calm and Stay Rational." All caps are used in mixed fonts and the words are accompanied by the ultimate symbol for the complete opposite of rational: the Greek letter Pi. Other graphic elements include exclamation points and Art Deco style borders. 

The lowercase Greek letter Pi is used in mathematics and geometry as a symbol for the irrational constant that begins 3.14159... This irrational number is used to calculate measurements in a circle. 

Get this fun, silly, and downright irrational apparel design for the math geek or science lover in your life! It's great for math teachers, mathematics students, geometry lovers, and more! Seen here on a unisex black tee, you can pick this up in styles for women or kids, and even choose different apparel styles as shown below.

Buy / More Details

More Keep Calm and Stay Rational Funny Apparel Options

Keep Calm and Stay Rational Irrational Funny Math Geek Sweatshirt
From Amazon
Keep Calm and Stay Rational Irrational Funny Math Geek Sweatshirt
Keep Calm and Stay Rational Irrational Funny Math Geek Sweatshirt – Funny for Math Geeks and Science Nerds; Fun Graphic Math Nonsense Design in Bright Colors, Bold Text; 8.5 oz, Classic fit, Twill-taped neck. View on Amazon
Womens Keep Calm and Stay Rational Irrational Funny Math Geek V-Neck T-Shirt
From Amazon
Womens Keep Calm and Stay Rational Irrational Funny Math Geek V-Neck T-Shirt
Womens Keep Calm and Stay Rational Irrational Funny Math Geek V-Neck T-Shirt – Funny for Math Geeks and Science Nerds; Fun Graphic Math Nonsense Design in Bright Colors, Bold Text; Lightweight, Classic fit, Double-needle sleeve and bottom hem. View on Amazon
Keep Calm and Stay Rational Irrational Funny Math Geek Long Sleeve T-Shirt
From Amazon
Keep Calm and Stay Rational Irrational Funny Math Geek Long Sleeve T-Shirt
Keep Calm and Stay Rational Irrational Funny Math Geek Long Sleeve T-Shirt – Funny for Math Geeks and Science Nerds; Fun Graphic Math Nonsense Design in Bright Colors, Bold Text; Lightweight, Classic fit, Double-needle sleeve and bottom hem. View on Amazon
Keep Calm and Stay Rational Irrational Funny Math Geek Tank Top
From Amazon
Keep Calm and Stay Rational Irrational Funny Math Geek Tank Top
Keep Calm and Stay Rational Irrational Funny Math Geek Tank Top – Funny for Math Geeks and Science Nerds; Fun Graphic Math Nonsense Design in Bright Colors, Bold Text; Lightweight, Classic fit, Double-needle sleeve and bottom hem. View on Amazon

Keep Calm, Alien, and Phone Home!

Posted in Funny

This is a fun Keep Calm meme variation that is perfect for phone cases. The design is done in neon alien green and reads Keep Calm and Phone Home. A reference to a catchphrase from the classic film E.T. the Extra-Terrestrial, the icon here is a familiar "grey alien" style image instead of the crown.

Read More

No Internet! I Can't Keep Calm! Funny T-Shirt

Posted in Funny

We love this funny variation on the Keep Calm meme. In this case, keeping calm is impossible -- and with good reason. No internet! How will you survive? How will lingering random questions be instantly answered? How will you know what is going on with your friends? When will you be able to update your network on your latest meal choice?

Read More

Keep Calm I'm Part Ninja Black T-Shirt

Posted in Funny

Are you a fully trained warrior ninja and you want your friends to calm down? Then check out this funny graphic tee design with the text Keep Calm I'm Part Ninja.  This is based on the classic British Keep Calm and Carry On posters. This spoof version has...

Read More

Don't Tell Me To Keep Calm Travel Mug

Posted in Funny

Sometimes keeping calm isn't the answer. And certainly telling someone else to remain calm could be a dangerous move. This funny spoof uses the traditional crown but turns the slogan decidedly negative. This design uses bold red text that pops against the metal background of the mug. Shown here...

Read More
Copyright 2025 Stuffosaurus – All Rights Reserved. – Terms of Use & Privacy Policy