cut your own throat

US /kʌt jʊər oʊn θroʊt/
UK /kʌt jʊər oʊn θroʊt/
"cut your own throat" picture
1.

自掘坟墓, 自毁前程

to do something that will cause your own failure or downfall

:
If you refuse to cooperate with your team, you'll be cutting your own throat.
如果你拒绝与团队合作,你就是在自掘坟墓
Raising prices too much could cut your own throat by driving customers away.
价格涨得太高可能会自毁前程,把顾客都赶走。