Haircuts 2014 - Slam Dunk 2014 Online Game, Slam-dunk - definition of slam-dunk by the free dictionary, Slam-dunk (sl m d ngk) v. slam-dunked, slam-dunk·ing, slam-dunks. v.intr. basketball. to make a slam dunk. v.tr. 1. basketball to shoot (the ball) in a slam dunk.. Slam dunk - definition of slam dunk by the free dictionary, Slam dunk (sl m d ngk) n. 1. basketball a dramatic forceful dunk shot. 2. slang a forceful dramatic move: "i ask [him] whether the slam dunk of the indictment was a.