36
1)To not behave like a child and to not behave like a woman.
2)To know what masculinity is and what testosterone does.
3)To be an adult male in the truest sense of his manhood.
1)Dude is a MOMMAS BOY, dude needs to man up.
2)Dude is on estrogen, dude doesnt know how to man up.
3)Dude does not mess around, you better man up.
by Brian E.Nightingale October 13, 2007
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37
Female shaming term used to make men act against their own self-interest and for the benefit of women. Also used by manginas and white knights in the futile hope of scoring with women.
That white knight told me to "man up" and take care of that chick who is on welfare and has three kids by three different dudes.
by Jofish Marmar February 19, 2017
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38
adv; mans up, manning up, manned up.

1.To man up: Its time for you to man up for your baby girl.

2.To be manning up: he manned up once he saw the one.

3.To have manned up: he manned up for his son in the past.
1.Did he man-up, or fess-up to his moma!?

2.Today I might be manning-up, for class.
3.Get up to my level of happiness, before you leave.
by RB. 865. January 25, 2014
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39
adv; mans up, manning up, manned up.

1.To man up: Its time for you to man up for your baby girl.
2.To be manning up: he manned up once he saw the one.

3.To have manned up: he manned up for his son in the past.
1.Did he man-up, or fess-up to his moma!?
2.Today I might be manning-up, for class.

3.Get up to my level of happiness, before you leave.
by RB. 865 January 21, 2014
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40
To conduct one's self befitting of a man deserving of a fine piece of trim.
John C and Ralph M watched as a sniveling young punk cry like a school girl while watching his women knob down on another man. John C turned to Ralph M and stated: That mother fucker needs to MAN UP. Derived Mid 1970s NJ.
by questor1 August 06, 2011
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41
Said when the would be, baller is talking all the shit to get what he/she wants
Another way of being called out after action has been taken.
You want it sucka, it's time to Man up. Request or ask for what you want and see what happens.

or

Guy: Bro I put $20 on the fact J's bullshittin.

Girl: Yeah he won't do it! Says he's a bad ass baller but won't just go for it. Man up dude.
Guy: Nevermind $20. I put a 50 spot on the fact he pussies out and doesn't do it.
by wolfdog8mynutsDrnsqirl November 25, 2009
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