break someone's balls

break someone's balls (third-person singular simple present breaks someone's balls, present participle breaking someone's balls, simple past broke someone's balls, past participle broken someone's balls)

1. (slang, vulgar) to seriously irritate or nag someone.
   • 1990, Goodfellas:

     Morrie Kessler: Sorry, did I catch ya in the eye?

     Frankie Carbone: Morrie, stop breakin’ my balls, alright?

2. (slang, vulgar) to tease or ridicule someone; to take the piss out of someone.

• bust someone's balls