hoist by/with (one's) own petard

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hoist by/with (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. ("Hoist" in this instance is the past participle 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: by, hoist, own, petard
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

hoist with one's own petard

Fig. to be harmed or disadvantaged by an action of one's own which was meant to harm someone else. (From a line in Shakespeare's Hamlet.) She intended to murder her brother but was hoist with her own petard when she ate the poisoned food intended for him. The vandals were hoist with their own petard when they tried to make an emergency call from the pay phone they had broken.
See also: hoist, own, petard
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.

hoist by your own petard


hoist with your own petard

If someone is hoist by their own petard or is hoist with their own petard, something they do to get an advantage or to harm someone else results in harm to themselves. You should stop spreading stories about your opponents or, sooner or later, you will be hoist with your own petard. Note: `Petards' were metal balls filled with gunpowder which were used to blow up walls or gates. The gunpowder was lit by a slow-burning fuse, but there was always a danger that the device would explode too soon and `hoist' the person lighting it, that is, blow them up in the air.
See also: by, hoist, own, petard
Collins COBUILD Idioms Dictionary, 3rd ed. © HarperCollins Publishers 2012

hoist with (or by) your own petard

have your plans to cause trouble for others backfire on you.
The phrase is from Shakespeare's Hamlet: ‘For 'tis the sport to have the enginer Hoist with his own petard’. In former times, a petard was a small bomb made of a metal or wooden box filled with explosive powder, while hoist here is the past participle of the dialect verb hoise , meaning ‘lift or remove’.
See also: hoist, own, petard
Farlex Partner Idioms Dictionary © Farlex 2017

be hoist/hoisted by/with your own peˈtard

(British English) be caught in the trap that you were preparing for another personThis is from Shakespeare’s play Hamlet. A petard was a small bomb.
See also: by, hoist, own, petard
Farlex Partner Idioms Dictionary © Farlex 2017

hoist by your own petard

Hurt by your own misdeed. A petard was a medieval bomb made of a container of gunpowder with a fuse, and to blow open gates during sieges against towns and fortresses. Unreliable, petards often exploded prematurely and sent the person who lit the fuse aloft (the “hoist” image) in one or more pieces. The phrase, which is often misquoted as “hoist on one's own petard,” comes from Hamlet: For 'tis the sport to have the engineer Hoist with his own petard; and ‘t shall go hard But I will delve one yard below their mines And blow them at the moon . . .
See also: by, hoist, own, petard
Endangered Phrases by Steven D. Price Copyright © 2011 by Steven D. Price
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References in periodicals archive ?
There is something very gratifying about watching a political thug get hoist by his own petard. Matteo Salvini, the hard-right populist who thought he could force an early election and become Italy's strongman by breaking up the coalition government he served in, has publicly cut his own throat.
Condemned forever to the back benches, hoist by his own petard, the hapless Fox hunted down by the pack.
Has no-one ever heard of 'hoist by his own petard'?
But now Robin Cooper, in real life comedy writer Robert Popper, has been hoist by his own petard.
Hoist by his own petard, Tony Blair had set himself a high bar when he came into office, promising to be 'whiter than white'.
JUDGING from this evasive response to journalist's questions at the monthly Downing Street press conference at which he "repeatedly attempted to bat away the question of whether he wants to see Saddam Hussein hanged" (Daily Post, November 4), it is clear that much as he would like to see the extinguishing of Saddam as the beacon of continuing resistance to the illegal occupation of his country, Tony Blair has been hoist by his own petard over his own populist stance on capital punishment.
But in the end good sense prevailed and the man who made his name making fun of other people and their misfortunes was hoist by his own petard - which knowing what a weirdo he is, he'd have enjoyed enormously.
How right C H Williams (March 5) is when he writes that exchanges have indeed meant that more people could have an incentive to be dishonest - hoist by his own petard, methinks!
In a way he was hoist by his own petard. For on his appointment, back in February 1999, he was presented as "The People's Choice".
Hoist by his own petard, I would venture to suggest!
Few know what it means, but all of us know exactly what we mean when we say with very gad grammar: 'A pedant - like Mr Green - was hoist by his own petard.'
ALASTAIR DOWN, in his article on the effects of a hunting ban on racing, is in danger of being hoist by his own petard.