To get busy with your lady i.e. to have sexual intercourse but call it something much more manly.
I'm bout to get my grown man on.

Quit being a faggot and get your grown man on!
by cake-etiquette December 16, 2008
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A phrase used by a dictator or other totalitarian ruler to command his subjects to put an individual to death, traditionally by an execution method known as corn holing. It is thought to have originated in Ancient Rome, where the phrase would be spoken by the emperor after a gladiator was defeated in the coliseum.
Centurion: Emperor Kermitus, what is your decree for the gladiator?

Emperor Kermitus, giving a thumbs down: Get that man
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A phrase someone says when a man does something polite or charming. It means to get a respectful boyfriend like the guy you are referencing is to his girlfriend.
Jenna: Hey Charlie, can you go get me some more water?

Charlie: Sure (gets up to go get Jenna water)
Jenna: Can you also grab the ketchup?
Charlie: Yeah (grabs ketchup and water and brings them to Jenna)
Alice: Get you a mans like this!
by Jeff Goldblum 101 July 1, 2020
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