have someone by the balls

US /hæv ˈsʌmˌwʌn baɪ ðə bɔlz/
UK /hæv ˈsʌmˌwʌn baɪ ðə bɔlz/
"have someone by the balls" picture
1.

mieć kogoś w garści, trzymać kogoś za jaja

(vulgar slang) to have complete control over someone, especially by having information that could harm them

:
The prosecutor really had him by the balls with all the evidence.
Prokurator naprawdę miał go w garści ze wszystkimi dowodami.
If you owe them money, they'll have you by the balls.
Jeśli jesteś im winien pieniądze, będą cię mieli w garści.