Sweating so much that you need multiple shirts during the day. Alternatively it may refer to sweating through multiple shirts at one time. Started being used even before the word snox, the first term which inspired a monstrous batch of revolutionary new lingo.
by Matt-E-Okee July 22, 2010

Engaging in typically, romantic or somewhat sexual behavior with other men, for the purpose of personal development not a long term relationship. People Blue-shirt to prepare both participants for future relationships with other people.
An play on the term “red-shirting” because blue shirting is often done in college.
An play on the term “red-shirting” because blue shirting is often done in college.
Greg: Why are you always hanging with Todd? That’s gay.
Jim: We’re not gay we’re just blue-shirting until graduation. His girlfriend cheated on him.
Jim: We’re not gay we’re just blue-shirting until graduation. His girlfriend cheated on him.
by Spookyroni December 16, 2018

October is National no shirt month because the weather is still a little warm, and not too cold so you should keep your shirt off while it lasts!
by Joe Mamma’s a hoe October 25, 2019

by curghi March 29, 2020

Person A: Yo what's up man
Person B: Oh fuck off
Person A: C'mon now just, what's up?
Person B: Fuck off you prick you know what's wrong
Person A: Ok, Ok. Be a T-shirt then..
Person B: Oh fuck off
Person A: C'mon now just, what's up?
Person B: Fuck off you prick you know what's wrong
Person A: Ok, Ok. Be a T-shirt then..
by Some-mentle-cunt May 25, 2021

by Filligrees_Daddy August 18, 2021

by Bylerdepression January 21, 2019
