dig up dirt on (someone or something)

dig up dirt on (someone or something)

To uncover negative and potentially damaging information about someone or something. Once I contact my usual sources at the tabloids, I should be able to dig up dirt on that actress. He was thrown in jail for digging up dirt on the local government.
See also: dig, dirt, on, up
Farlex Dictionary of Idioms.
See also:
  • dig up dirt
  • dig some dirt up
  • dig the dirt
  • grist for (one's) mill
  • grist for the mill
  • grist for the mill, that's
  • grist for/to somebody's mill
  • grist to (one's) mill
  • shut somebody's mouth
  • Shut your mouth!