1. an unusually successful hit with widespread popularity and huge sales (especially a movie or play or recording or novel); [syn: blockbuster, megahit, smash hit]
WordNet (r) 3.0 (2006):
megahit
n 1: an unusually successful hit with widespread popularity and
huge sales (especially a movie or play or recording or
novel) [syn: blockbuster, megahit, smash hit]