M.C. M.C. or emcee {v.} To act as master of ceremonies at a show. The famous actor emceed the entire television show. Categories: add yours add yours TV {v.} Source: A Dictionary of American Idioms by A. Makkai, M.T. Boatner, J.E. Gates © 2025 To section: M Subscribe to: American Idioms► Also consider the parent subscriptions (3)Idioms feedEnglish languageHome page and general feed Leave my opinion Leave my opinion