hoist by (one's) own petard

(redirected from hoist by their own petard)
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hoist by (one's) own petard

To be injured, ruined, or defeated by one's own action, device, or plot that was intended to harm another; to have fallen victim to one's own trap or schemes. (Note: "hoist" in this instance is the simple past-tense of the archaic form of the verb, "hoise.") I tried to get my boss fired by planting drugs on him, but I was hoist by my own petard when the police caught me with them beforehand.
See also: hoist, petard
References in periodicals archive ?
SKRILL PREMIER WREXHAM 1 (Clarke 21) DARTFORD 2 (Pugh 9, Bradbrook 45) WREXHAM were to some extent hoist by their own petard at a rain-sodden Racecourse on Saturday where, despite the conditions, they chose to play the way they know best instead of adapting their game to counter what the weather had inflicted on the pitch.
The PM and his Chancellor are hoist by their own petard, now we've discovered shamed former boss Paul Flowers entertained Tories on a night out at the party's own conference.
Then, hoist by their own petard, they will be forced to accept defeat.
I was immediately reminded of ectopic pregnancies and people being hoist by their own petard.
The Blairites were suddenly hoist by their own petard.
THE BBC are hoist by their own petard, so to speak.