Definition from Wiktionary, the free dictionary
- (idiomatic, transitive) to sing loudly; to emit music loudly
- He belted out Sweet Child of Mine at the karaoke.
- Lively show tunes being belted out by the pianist on the grand piano.
- The jukebox belted out tunes from the fifties, and waiters shouted food orders to the cooks behind the enormous steel counter.