Meanings
man + up, with influence from own up, buck up.
How to pronounce "man up":
To "be a man about it"; to do the things a man is traditionally expected to do, such as taking responsibility for the consequences of one's actions; displaying bravery or toughness in the face of danger, adversity, or a challenge; providing for one's family, etc.
Example: "I was wondering when he would man up and marry that girl he knocked up."
Example: "You need to man up and confront your boss about her behavior."
Example: "Hey son, man up, okay? There will be time for tears later."
(Of personnel) to assemble, each person manning (attending to) his station, prepared for the departure of an aircraft, ship, etc.
To staff adequately; to staff up; to successfully fill all needed labor positions.
To vigorously guard the opponent to whom one is assigned.
