dig one's own grave

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dig one's own grave (third-person singular simple present digs one's own grave, present participle digging one's own grave, simple past and past participle dug one's own grave)

1. (idiomatic) To behave in a way that is likely to have future negative effects on oneself, including (but not limited to) death.

   Synonyms: cut off one's nose to spite one's face, dig oneself in a hole, shoot oneself in the foot, sign one's death warrant

• make one's bed and lie in it
• take it out on