When somebody is such a woman that they need to not just man up, but Man The Fuck Up. Can be shortened to MTFU. Usable on both genders and all species. Also, note that someone who gets some supresses the need to have this for a few days as they have already Manned Up enough.
Ed: Wow, it's reallt bright outside :)
Dude: Man Up Ed.
Ed: No, look, it's so bright, lets go and play outside.
Dude: Ed. I'm going to say this just once. Man The Fuck Up!
by That Guy Who's Really Cool August 19, 2009
Top Definition
be a man not a bitch; see training day where he tells him to hit that mexican garbage
yo bitch, man the fuck up and finish that dime!
by t double d ya'll July 24, 2004
To instantly stop weeping over your huge vagina, grow a pair of hairy ones and get the fuck on with your day.
Nathan: "has anybody got any indigestion tablets?"

Answer: "Man The Fuck Up"
by Yeahuh November 25, 2012

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