hoist by (one's) own petard

(redirected from hoisted 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 ?
Too much of the Rangers play was speculative and one dimensional, without guile, craft or cutting edge and they were hoisted by their own petard when Richard Foster attempted to start a move with another long punt.
Tony Pulis's men - such a threat from set-pieces themselves - were hoisted by their own petard, as they allowed veteran centre-back Jody Craddock to score twice and salvage a point.
A group of men, hyped up on minor domestic success, have finally been hoisted by their own petard.
So what a joy to see them hoisted by their own petard under several feet of snow, snow ploughs buried, flights cancelled and smug grins wiped off faces.
As one who has spent considerable time dangling and swaying, I can attest that writers and editors--"especially those who try to be funny"--often are hoisted by their own petards and left twisting in the wind.