smash hit is a noun meaning "an unusually successful hit with widespread popularity and huge sales (especially a movie or play or recording or novel)". It carries one recorded sense.
an unusually successful hit with widespread popularity and huge sales (especially a movie or play or recording or novel)
trope
Definitions, synonyms and semantic relations for smash hit come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.