Get off my case.
→  남의일에 상관마.

[예문]
A:You and John have been together a long time and you're getting pretty old.
  존하고 오래사귀었고 너희들도 나이들어가잖아.

B:So?
  그래서?

A:When are you going to get married?
 언제 결혼할건데?

B:Will you get off my case? You're just as bad as my mother.
 네 할일이나 잘해. 우리엄마처럼 간섭하지말고.