dig your own grave


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dig (one's) own grave

To do something that has or will have negative consequences that are easily able to be foreseen. If you don't turn in your project, you're digging your own grave. There's no way you'll get a decent grade without it! I'm afraid I'm digging my own grave by turning down the promotion.
See also: dig, grave, own
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

dig your own grave

If you dig your own grave, you create serious problems for yourself by doing something foolish. I don't feel sorry for him — he's dug his own grave as far as I'm concerned.
See also: dig, grave, own
Collins COBUILD Idioms Dictionary, 3rd ed. © HarperCollins Publishers 2012

dig your own grave

do something foolish which causes you to fail or leads to your downfall.
1995 Colin Bateman Divorcing Jack Then I thought about Patricia again and how much I was missing her and how I'd dug my own grave over the phone.
See also: dig, grave, own
Farlex Partner Idioms Dictionary © Farlex 2017

dig your own ˈgrave

,

dig a ˈgrave for yourself

do something that will bring harm to yourself: If you give up your job now, you’ll be digging your own grave, because you won’t find it easy to get another one.
See also: dig, grave, own
Farlex Partner Idioms Dictionary © Farlex 2017
See also:
References in periodicals archive ?
You can dig your own grave sometimes but I haven't done that, so it's great to be in the final."
"I could have easily thought it isn't going my way and you can dig your own grave in some respects - but I haven't done that and it is good to be in the final and I amtaking nothing for granted."
Other warnings said "Dig your own grave" and "Your life will end, gunman paid".