flash , v : To briefly illuminate a scene. To blink; to shine or illuminate intermittently. To be visible briefly. […] (transitive, intransitive, informal) To briefly, and in most cases inadvertently, expose one's naked body or underwear, or part of it, in public. (Contrast streak.) (figuratively) To break forth like a sudden flood of light; to show a momentary brilliance. To flaunt; to display in a showy manner. To communicate quickly. To move, or cause to move, suddenly. (transitive) To telephone a person, only allowing the phone to ring once, in order to request a call back. […] The DC Comics title Justice League of America made its debut this month in 1960.