harp on one string

harp on one string

To dwell tediously and repeatedly upon a single subject or topic, especially in complaint. Likened to playing the same note over and over again on a harp. Mark is always harping on one string about how little money he makes. I wish he would come up with something new to talk about! I get it, you don't like your job. Quit harping on one string!
See also: harp, on, one, string
Farlex Dictionary of Idioms.
See also:
  • harp on the same string
  • harp
  • harp away at (someone or something)
  • get (one's) rocks off on (something)
  • keep (going) on about (something)
  • ramble on
  • rattle on
  • rattle away
  • be on about something
  • be/go/keep on about something