A hip-hop performer responsible for backup rapping and singing and increasing an audience’s excitement with call-and-response chants.

Alternative form of ringman

An elderly man. / (slang) One's father. / (slang) A husband, or male significant other, irrespective of age. / (slang) One's male employer, irrespective of age.

Of a system: including both human and machine and/or their interface.

(idiomatic) A person who always agrees with their employer or superior.

A man who is wise. / A man who is a sage or seer. / A magus or wizard, now especially one of the three biblical magi.

(historical) A US government agent fighting organized crime in the interwar years. / Any person working for the US government, especially in undercover work.

(dated) An expression of surprise

(bingo) five

Alternative form of man of action