or the Man somewhat old-fashioned : the police
He got in trouble with the Man and ended up in jail.
or the Man or less commonly The Man : the white people who are seen as having power in the U.S. : the white establishment
He got a job working for the Man.
: a man who is admired or respected as a leader or as the best man in a particular field, sport, etc.
The other players on the team all know that he's the man.
You're the man!
Love words? Need even more definitions?Merriam-Webster unabridged