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. © 2015 Farlex, Inc, all rights reserved.
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