This is my man Sam, who's gonna show you how to boogie.Come on, my man, we have to be taking care of business.
My man!
An exclamation of appreciation or pleasant surprise said to a man. A: "I managed to get that thing you wanted." B: "My man! I knew you would come through for me."
my man
n. my brother or buddy. (Originally black.) This is my man Sam who’s gonna show you how to boogie.