Definition from Wiktionary, the free dictionary
Mr. Big (plural Mr. Bigs)
- (informal) The head of a crime syndicate, a high ranking criminal.
- An underworld Mr Big who built up a ruthless crime empire in Greater Manchester was jailed indefinitely yesterday. (Lancashire News 5th Jan 07).
- Defence lawyers critical of 'Mr. Big' police stings. CBCNEWS, 27 Dec 06.
- ...by the end of the novel, Mike (Hammer) has rescued Velda, killed the Mafia's sinister Mr Big, and recovered the stash of drugs..." Hardboiled Hollywood, Max DeCharne. P84.