dig up dirt on (someone or something)(redirected from dug up dirt on somebody)
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.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.