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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
Related Words
GTFU GTFUL GTFUTM
"Dude, it's 9:45 and you're still sleeping, you need to GTFU and go to class!"
GTFU by tdbmachine January 3, 2008
It's time for you to stop relying on your parents and gtfu
gtfu by stressless18 May 8, 2018
"GTFU, and get out of my office!!!!"
GTFU by Noah Armon March 16, 2022
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