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1.
adj. A male who overcompensates in an attempt to be cool. Most likely a fratboy or douchebag who has their collar popped. So named for their affinity to wear pink shirts out to social events.
That bar was whack, full of pink shirts spending dad's money.
by Waldo_ June 10, 2005
 
2.
A shirt worn by men who are aiming to "get some" because girls think it looks good. This is because pink shirts are completely feminine, therefore, homesexual. Pink shirts are supposedly manly or so the wearers say, but this is entirely false. In fact, the chances of a young male becoming gay after wearing a pink shirt significantly raise by 37.4%.
Look at that douchebag! He's wearing three pink shirts and all of their collars are popped.
by Chase September 04, 2005
 
3.
A vaguely one-dimensional character in a TV show, book, movie, etc. who appears suddenly and by all rules of plot cliches should die but doesn't, or is the only character to survive after all the main characters are dead. See anticlimactic.
When Helen killed Cutter, Captain Becker survived for no reason, proving his status as a pinkshirt.

When Harry killed Voldemort, he inherently turned all the remaining Death Eaters into pinkshirts.

Let's face it. Eight of the nine Ringwraiths are pinkshirts.
by TOSer June 06, 2009
 
4.
n. an article of clothing worn by young men and adolescents who are uncomfortable with their sexuality, but wear pink shirts to say they are.
"Wow. That's a large group of guys wearing pink shirts."
"Yes. They're likely on their way to bang each other because they're comfortable with their sexuality"
by Meezy December 29, 2005
 
5.
Shirts collectively worn by students in Nova Scotia who believe that bullying and violence will not be tolerated in their society and subsequently created an awareness around the world that simply; peace is achieveable through will, courage and love.
No more red shirts. Canada's youth will not support violence. Two grade twelve students show that peace is what all people want and pink shirts will prove they are right. Mr. Harper, Mr. Bush, Mr. Bin Laden, all who are wrong about war and violence, put on your Pink Shirts!
by im with you September 21, 2007
 
6.
Worn by hidden homosexuals who wear pink shirts to bluff they are comfortable with their sexuality, but have actually starred in gay porn movies
Gavin why do you always wear pink shirts we all know your gay
by Dark Side July 05, 2007
 
7.
Similar to a pink sock. It is made when someone puts one hand in a girl's vagina, and the other in her anus. The person then grabs hold of the intestines, and gives a pink sock from the front and back. It can also be made when a girl is getting double penetrated. It is a pink shirt because there is more pink material than in just a pink sock.
Whoa d00d, i double-fisted that girl last night, and i gave her a pink shirt when i pulled my hands out too fast!
by kirbyyy February 19, 2008