An uplifting imperative, derived from the saying "be a man about about it" - to grow a pair, to stop being childish, to stop complaining etc.
This saying can be used in many situations.
1) 'C'mon Gareth, man up! There's no time for tears in this day and age.'
2) After some hurtful comments from a female colleague, Gareth turned to Jimmy for advice. Jimmy said "Grow a pair and man up!"
3) 'Gareth is acting so childish - he needs to man up'
by meandmyfufu January 26, 2011
Get the mug
Get a Man Up mug for your dog Yasemin.
1. To acknowledge and to take responsibility for your own actions.

2. Don't blame others for your own mistakes, problems, or issues when you know it is your fault and not anyone elses. If it is someone elses fault that you are in a situation or predicament then do the best you can to deal with it.

3. Some people say it means not to cry; that is incorrect. We all have feelings; to deny them is to lie to yourself and others, "MAN UP" and deal with it. If you don't you only cause yourself physical, mental, psychological, emotional, and spiritual damage; and you also affect those around you in a negative way as you take it out on them, instead of dealing with it properly. EX: Jesus was a Man among men; he didn't "cry" He "wept tears of blood." He went to the cross, He manned up for things that were not His own.
Even if you are not a Christian/Believer you can surely admit that Jesus was not a wimp, coward, or a liar - He said it, and did it.
1. He did the right thing, he went back and (man up) told his boss the truth and accepted the consequences instead of letting his co-worker take the fall for it.

2. She accepted (man up)responsibility for the accident and told her Mom that she is the one who broke the antique.

3. I felt so sorry for the sobbing man. His immediate family died in a tragic head-on car accident because someone else was drinking and driving. Overall he is dealing with it the best that he can - he is letting it all out (man up), mourning as he should. He sure does have the right to do so.
by IrishDaddy2U April 11, 2010
Get the mug
Get a Man Up mug for your cousin Beatrix.
Derived from the phrase "cowboy up", meaning "be tough, be strong, act like a real cowboy", which was in use in rodeo circles at least since the mid-1970's. "Man up" means, similarly, "be tough, be a man, do what a man should do." Other derivations, such as "woman up", are common.
Stop complainign and man up!
by Aab July 12, 2006
Get the mug
Get a man up mug for your fish Jerry.
When a grown man is crying and moaning about something out of his control and someone tells him to knock it off or "man up"
Also see misspelled entry "manup".
Worker 1: Man, i hate diging ditches. Why do we have to do this all the time? This sucks. I need a break. My feet hurt. The boss hates me.
Worker 2: Quit acting like a little girl and "Man up"!
by Chadster October 24, 2003
Get the merch
Get the man up neck gaiter and mug.
v. To act in accordance with established masculine roles in a given situation, implying courage and responsibility. Usually used in the imperative, the term is a favorite of police who want suspects to incriminate themselves. Ironically, advice to 'man-up' is usually followed by a promise that it is the least painful alternative.
You signed for a package full of weed, now you need to man-up, and admit that you knew what was in it. It'll go easier for you with the judge.
by tom ballard, esquire March 02, 2009
Get the mug
Get a man-up mug for your coworker Larisa.
To play man-to-man defense in a basketball game.
Timid Timothy pissed his pants when the coach told him that he'd have to man up against Shaq.
by Nick D May 17, 2004
Get the mug
Get a man up mug for your sister-in-law Julia.
When a man is being a little sissy boy blaming others for his problems and lying about the truth.

Action verb: To Start acting like a real man.
Dude, you need to Manup to the truth and accept responsibility for your actions.
by joyle March 27, 2008
Get the mug
Get a manup mug for your cousin Beatrix.