bang-bang I. \ˈ ̷ ̷ˌ ̷ ̷\noun : shooting; broadly: violent action < plenty of bang-bang in that movie > II. \ˈ ̷ ̷ ¦ ̷ ̷ \adjective 1. a.: having a sudden forceful or attention-grabbing effect : punchy < bang-bang headlines > b.: executed or happening so quickly as to make judgement (as by an umpire or referee) difficult < a bang-bang play at first base > 2.: characterized by violent or fast-paced action < a bang-bang movie >