Expression used when girls posting online try to gain more attention by stating the fact that they are girls even if it has no relevance to the matter at hand.

Tits or GTFO is used in a way to say; If you are going to use your gender to gain further attention on a board or comment section of a predominantly male user base, you are basically saying "I have tits, give me more attention". Therefore you might as well go all out and show your fucking tits or get the fuck out.
Girl: Hey guys, female poster here. How do you like this video/game/whatever?
Unfazed commenter: Tits or GTFO
by Krello November 21, 2015
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An expression often used on imageboards. It is often heard when a girl posts in a thread.
by jiggsmaster3000 May 14, 2007
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what desperate retarded fucks with nothing better to do say when they are on chatroulette or omegle. these guys are the kind that are never gonna get any in their lives so they resort to these kind of websites in desperate hopes of seeing what they would never get to see in real life. most of the girls who are actually stupid enough to show their tits are nothing more than attention whores.
group of desperate fags on chatroulette: tits or GTFO!!!!!

*girl leaves*

desperate fags: awww why are none of these girls showing us their tits? i swear we have same problem in real life. lets click next maybe some insecure attention whore will show us some rack.

*clicks next to see some dude jerking off"
by twittersucksthed October 18, 2010
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1. Gimme tits or gtfo!

2. Often mentioned when a "noob" post is being made. Also in regards to reinforcing one's stand on a matter, as in expression "Take it or leave it"
1. Post some tits, bitch, or get the f**k off this thread.

2. I have made my stand clear. Now, tits or gtfo.
by zealotus December 08, 2010
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When a female enters into a male safe space and subsequently announces her presence, "tits or gtfo" is a commonly used response by males to protect their space and avoid being "triggered."

The term signifies that the female in question should either reveal their breasts or promptly leaves the premises. This is necessary in order to demonstrate that she represents no psychological or physical threat to men, which is necessary due to the gynocentric society we currently live in.

Alternately the aforementioned males may simply adopt the feminist approach and scream "triggered" in a hysterical tone and run around, hopefully tripping, falling, and doing irreparable harm to themselves-in order to fully replicate the feminist response.
Please, thou showest thy tits or thou shalt leaveth immediately, tits or gtfo
by kek-lord August 11, 2016
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Short for, "tits or get the fuck out", often expressed towards an annoying person who has attempted to garner some form of undeserved attention.

The recipient almost never shows their tits, nor is even expected to. As a result, the recipient almost always retreats without further discussion.
Person 1 - Heyy guysss, I know I'm new here but I thought everyone might like to listen to my life story!!!

Person 2 - Tits or gtfo

Person 3- Tits or gtfo

Person 1- ...
by 🐺 November 21, 2018
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