get your own back
US /ɡɛt jʊər oʊn bæk/
UK /ɡɛt jʊər oʊn bæk/

1.
복수하다, 앙갚음하다
to take revenge on someone for something they have done to you
:
•
After he tricked me, I decided to get my own back by playing a prank on him.
그가 나를 속인 후, 나는 그에게 장난을 쳐서 복수하기로 결정했다.
•
She was determined to get her own back on her rival.
그녀는 라이벌에게 복수하기로 결심했다.