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!
A statement made to someone especially a man, either to conform him into making a horrible decision, downplay his masculinity or to offer insincere praise.
This usually ends in immense shame.
Go downstairs and confront him, na man you be
See as you dey shine na man you be
Na man you be ooo, you no fit buy car for your babe