When a female tries to man the fuck up but cannot do so because she is just simply not man enough, all she can do is what any self respecting lady would do and bend over to recieve a man up her ass.
Sian - I cant watch this film its to scary
Jon - Don't be such a pussy
Sian - But its gunna give me nightmares
Jon - Just man up
Sian - But I dont like it (starts crying)
Jon - Man the Fuck Up
Sian - Man up My Ass
by Black Jon February 25, 2008
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to make something that seems too girly more manly
james blunt has to man it up when he sings his love ballads by throwing in some swear words

by GabiM. May 5, 2007
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Yo, some kid was gettin in some run on the courts back in the day, and he straight got his grown man up on some cat that tried to block his shit.
by medschoolghettoadvisor March 10, 2008
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someone who delivers either in the sack or in general
shit son...gadel is the UPS man
by the jr ups man May 5, 2004
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is the one friend who fucks up everything your friend group does and ruins the entire Fucking Experience for evryone. They are also the most retarded, autistic peices of shits in the world.These peoples name consist of. Will, Bob, Jeff or Jeffery, Mark, Luke, And Eric. Watch out for these people ladies and gents this people will ruin your life.
Mark shoplifts and you guys get arrested

"Jesus Mark Your The One Man Fuck Up
by Gibbys are not gay December 19, 2019
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A good man that gets curbed by a chick who's average at best but thinks she's

God's gift to the world. She later gets pregnant by Anquandretravious and she's left alone with a baby. Realizing she's messed up (and 60 pounds heavier) she goes back to said curbed guy to take care of her and her child.
Guy: Let's date.
Girl: You're not my type.
Girl: Gets pregnant by Raequantay and is left alone with a baby
Girl: You wanna date now?
Guy: Kick rocks. I'm not your clean up man.
by Simp Free December 10, 2019
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