잉글리쉬쇼핑

bust (one’s) balls

• 
  의미:
  1. (속어) (특히 급하게) 뼈빠지게 일하다, 엄청 노력하다
  2. (속어) ~에게 일을 하도록 질책하다, 잔소리하다, 괴롭히다
  3. (속어) ~를 놀리다. 조롱하다
  
  예시
  Are you going to bust his balls?
  Please don't bust my balls on this.
  Once you’ve busted your balls to get in, you’ve then got to make sure you keep up with the intense workload.