Meaning

1 senses
  1. (humorous)Used to indicate failure or disappointment.

Origin

From a plaintive trombone (or sometimes trumpet) sting played during game shows to indicat

From a plaintive trombone (or sometimes trumpet) sting played during game shows to indicate a player losing.

Wiktionary, CC BY-SA 4.0 · source

sad trombone — meaning, examples, forms, synonyms | Krumeto