Buster is a term used to refer to a person, usually a man. The crossword solutions for the term Buster include FELLA (5 letters), KIDDO (5 letters), Narc (4 letters), BUB (3 letters), MAC (3 letters), Narco (5 letters), and Keaton (6 letters). FELLA is a slang term for a man, while KIDDO is a term of endearment for a child. Narc is short for Narcotics Officer, which is a law enforcement officer who specializes in the investigation and enforcement of laws related to illegal drugs. BUB is a slang term for a brother or friend, while MAC is a slang term for a man. Narco is short for Narcotics, which are drugs that are illegal to possess or use. Finally, Keaton is a surname, which is often associated with the actor Buster Keaton.