bum note
English
Noun
- (slang, derogatory, music) A note that is played incorrectly.
- (slang, derogatory, figuratively) A social or conversational mistake; an awkward or inappropriate action.
- 2013, Alan Gibbons, Raining Fire:
- 'I'm going for a pint.' Declan paused on the way out. 'You really think Ethan's that good? There could be money in it?' He realised he had struck a bum note.