mickey mouse . mickey mouse (2) {n.} ( {derogatory}) A stupid person; a policeman; a white man (as used by blacks). Categories: add yours {derogatory} {n.} Source: A Dictionary of American Idioms by A. Makkai, M.T. Boatner, J.E. Gates © 2024 » In RussianTo section: M Subscribe to: American IdiomsIdioms feedEnglish languageHome page and general feed Leave my opinion