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Region: General | Usage example: He shot himself in the foot by leaking the memo.

Shoot oneself in the foot

Meaning

Do something self-defeating.

Usage

Used when a mistake causes self-inflicted problems.

Origin & History

Origin notes can vary by region and source; this page gives the commonly reported explanation and usage context.

Literal accident harming one's own ability to fight.

Military contexts from the firearm era warn about such accidents.