give as good as you get
US /ɡɪv æz ɡʊd æz juː ɡɛt/
UK /ɡɪv æz ɡʊd æz juː ɡɛt/

1.
以牙还牙, 不甘示弱
to respond to someone's bad treatment by treating them in the same way
:
•
She's not afraid to give as good as she gets in an argument.
在争论中,她不怕以牙还牙。
•
If you try to bully him, he'll give as good as he gets.
如果你想欺负他,他会以牙还牙。