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Man The Fuck Up!

An exclamation of disgust aimed at an individual who is incredibly weak willed and looks like they are going to either blub or piss their pants!
Oi fairy, have another pint and MTFU!
MTFU by Johnny 2 Sheds! May 29, 2009
Related Words
David: You heard what Stacy did to Brian

James:Yea that's mtfu
Mtfu by Inigma January 17, 2017
man trans fag undercover

when you see the mtfu bumper sticker or your favorite bars being invaded by mtfu
my favorite bar just got taken over by mtfu (man trans fags and undercovers) time to find a new bar
mtfu by dabz7lO February 20, 2020