Would getting a tattoo of the number “pi” (3.14…) be irrational?  Many people do have a pi tattoo.
   
“Why would someone get a pi tattoo? That’s so irrational” was posted on Twitter by Aaron Cooper on September 30, 2009. “My friend decided to get a tattoo of Pi on his face. It was an irrational decision” was posted on Reddit—Jokes on October 30, 2014. “Getting a tattoo of pi would be irrational” was posted on Twitter by Queso on March 27, 2017.
 
   
Wikipedia: Pi
The number π (/paɪ/) is a mathematical constant. Originally defined as the ratio of a circle’s circumference to its diameter, it now has various equivalent definitions and appears in many formulas in all areas of mathematics and physics. It is approximately equal to 3.14159. It has been represented by the Greek letter “π” since the mid-18th century, though it is also sometimes spelled out as “pi”. It is also called Archimedes’ constant.
       
Twitter
Aaron Cooper
@warpcorebreach
Replying to @karpenko
@karpenko Why would someone get a pi tattoo? That’s so irrational.
1:17 PM · Sep 30, 2009·Twitter Web Client
   
Twitter
Ed the Zed
@edthezed
I got a pi tattoo. That shit is irrational.
12:03 PM · Mar 4, 2010·Twitter Web Client
   
Twitter
Cricket Liu
@cricketliu
The gal at the next table has a tattoo of pi behind her left ear. Why would she do that?  It’s irrational.
10:16 PM · Sep 10, 2010·Twitter for iPhone
   
Twitter
Damien Saunders
@damienps
@hellokarlyy It would be irrational not to get a pi tattoo
5:48 AM · May 10, 2011·Twitter for BlackBerry®
   
Twitter
Fiona Fedra
@Blue_Dragon_XX
I think I’ll get a tattoo of pi somewhere on my body cause I can be so irrational
6:23 PM · Apr 17, 2013·Twitter Web Client
   
Twitter
Mediocreman
@Brockohli
My brother in law’s brother has a pi tattoo and I was like “that’s a pretty irrational tattoo on your arm.” Nobody got my joke. #alone
3:25 AM · Jun 9, 2013·Twitter for Android
   
Twitter
Jessica Johnson
@J_Johnson2013
So I got a pi tattoo the other day…my mom thought it was irrational #Badumtsss #nerdjoke 😁
6:18 PM · Jul 9, 2013·Twitter for iPhone
   
Reddit—Jokes
Posted by u/JDN3 October 30, 2014
My friend decided to get a tattoo of Pi on his face.
It was an irrational decision.
   
Twitter
Hector
@HectorTweeted
To celebrate Pi Day, I was going to tattoo all of the digits of pi on my arm, but that’s irrational.
#PiDay #PiDay2016 #HappyPiDay #tattoo
11:50 PM · Mar 14, 2016·Twitter Web Client
   
Twitter
Queso
@djbitchtits
getting a tattoo of pi would be irrational
3:44 PM · Mar 27, 2017·Twitter for iPhone
 
Twitter
Patricio Parrales
@Patricio005
K: Would you get 3.14 as a tattoo?
P: Why would I want to get Pi as a tattoo?
K: Because I would?
P: Sounds like an irrational thing to do.
3:01 PM · Sep 8, 2017·Twitter for Android
   
Twitter
Hector
@HectorTweeted
To celebrate Pi Day, I was going to tattoo all of the digits of pi on my arm, but that’s irrational.
#PiDay #PiDay2019 #HappyPiDay #tattoo
12:35 AM · Mar 15, 2019·Twitter Web Client
 
Reddit—Cleanjokes
Posted by u/AbstemiousMaccaroni February 6, 2020
I wanted a tattoo of the number 3.14 on my arm…
But my wife said that was irrational.