settle old scores, to

settle old scores, to

To avenge an injury; to get even. This term alludes to settling up accounts or paying a bill, known as a “score” in seventeenth-century England. Earlier versions of this expression were to cut old scores and to quit old scores. In the eighteenth century it was also put as to pay off or rub out old scores.
See also: old, settle
The Dictionary of Clichés by Christine Ammer
See also:
  • flying colors, come off with
  • drunk as a lord/skunk
  • last-ditch defense/effort
  • laugh out of the other side of your face/mouth, you'll/to
  • time on one's hands, (to have)
  • go(ing) to the dogs
  • binge-watch
  • cat's paw, (be made) a
  • carrot and the stick, the
  • burned out, to be