I have never heard this expression, so it's hardly common. I also cannot find it using my search engine.
man over board
It means to the last man, everyone.
Man in the moon
Board is a piece of wood cut evenly into planks of varying sizes.The man hammered a nail into the board.
Attaboy is an expression of admiration or encouragement to either a boy or a man.
There is no such expression in German.Main is the name of a German river.Mann translates as man, husband
When someone is using "word" as an expression, ussualy have some of the following meanings : "I agree" "On my word" or "I am a man of my word/you are a man of your word"? "You have my word on it"
A man's expression can take forms such as music, art, ect.
Gro Zozo is a Haitian creole expression describing a well endowned man.
Calling a man a "dog" is common in many cultures. It is a mild insult, but not as bad as calling him an obscene word. "Charles, you dog" means "Charles, you are a crude and unpleasant person." However, this is also sometimes said admiringly, in particular regarding a man's sexual exploits.
To "play ostrich man" means ignore something that is obvious. Ostriches are supposed to bury their heads in the sand to try to escape from danger.
It means something or someone is around her .Ex super man is rumerd to fly past here