to dig one's own grave
[dig] {one's} grave with {one's} own knife and forkto dig one's own grave
01
to do something that will lead to one's own failure
![to [dig] {one's} own grave definition and meaning](https://cdn.langeek.co/photo/40865/original/?type=jpeg "to [dig] {one's} own grave definition and meaning")
Disapproving
Idiom
例
Be careful with your actions. If you're caught embezzling money, you'll be digging your own grave with your own knife and fork.
He has been digging his own grave with a string of poor results.
