GTFU 

GROW THE F.CK UP

Used when adults are acting like kids

An adult is crying about somthing dumb in a forum or acting childish. Use GTFU

GTFU by Newmie August 3, 2004

GTFU 

GTFU- Grow The Fuck Up.

An acronym used often by RA's, Power-nerds and other precocious minorities to express their disapproval of the many vapid, immature people one comes across.

'A' makes a ridiculous penis joke. 'B' says, "GTFU" in response, leaving 'A' in a daze...

GTFU by boyinterrupted April 7, 2009

GTFU 

Acronym for "Get the fuck up".

"Dude, it's 9:45 and you're still sleeping, you need to GTFU and go to class!"

GTFU by tdbmachine January 3, 2008

gtfu 

Grow the fuck up

It's time for you to stop relying on your parents and gtfu

gtfu by stressless18 May 8, 2018

GTFU 

GTFU, an abbreviation for Get The Fuck Up.

"GTFU, and get out of my office!!!!"

GTFU by Noah Armon March 16, 2022

gtfu 

Get The Fuck Out

this is corny gtfu

gtfu by lilckerah March 26, 2025

GTFUTM 

Short for "Get The Fuck Under The Misteltoe". First used by the fans of the popartist Justin Bieber, also known as beliebers.

Girl: I don't want to kiss you right know...
Boy: GTFUTM

GTFUTM by A belieber who beliebes November 16, 2011