From Longman Dictionary of Contemporary Englishslam dunkˈslam dunk noun [countable] 1 DSBwhen a basketball player jumps high above the net and throws the ball down through it2 American English informal a very impressive act The biggest legal slam dunk came when a judge sentenced four men to 505 years in prison.
Examples from the Corpus
slam dunk• The slam dunk was the final, dramatic proof that women could play a game recognizable to male fans of the sport.slam-dunkˈslam-dunk verb [intransitive, transitive] to put a ball through the net in basketball, by jumping very high and throwing the ball down through the net→ See Verb table 