My man!

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."
Farlex Dictionary of Idioms.

my man

n. my brother or buddy. (Originally black.) This is my man Sam who’s gonna show you how to boogie.
See also: man
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
See also:
  • a man after (one's) own heart
  • a man, woman, etc. after your own heart
  • man after my own heart
  • man down
  • man on the make
  • man of few words
  • man of few words, a
  • a man/woman of few words
  • a man of few words
  • man of many parts