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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, own, petard

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

hoist with your own petard

also hoist on your own petard
to be harmed by something that was intended by you to harm someone else The most enjoyable moment in any action film occurs when the villain is hoist with his own petard.
Etymology: based on the literal meaning of hoist by your own petard (blown into the air by your own explosive device), an expression made popular in Shakespeare's play, “Hamlet”
See also: hoist, own, petard

be hoist by/with your own petard

if you are hoist by your own petard, something that you did in order to bring you advantages or to harm someone else is now causing serious problems for you The government, who have made such a point of criticizing the opposition's morals now find themselves hoist by their own petard as yet another minister is revealed as having an illicit affair.
See also: hoist, own, petard

be hoist with one's own petard

To be undone by one's own schemes.
See also: hoist, own, petard

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: hoist, own, petard
References in periodicals archive ?
An extra 236 metres will be built from Petard Close to Slingsby.
I had a shattered pestle once," he confided, "but only because we had attached an explosive charge to it in an attempt to improve its performance by turning it into a petard.
In suggesting that we reinvent St George he joins the sinister gang as he called them, hell bent on reinventing the bits of our history they do not like, thus he is hoisted by his own petard.
So much for supporting 'animal welfare' Mr Hobday, your own bigoted animal rights ethos has hoisted you by your 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.
The two other men on the HMS Petard mission Able Seaman Colin Grazier and First Lieutenant Tony Fasson lost their lives, but galley assistant Tommy was able to escape with the vital documents.
Livingstone has spent a political lifetime up to his eyeballs in political correctness and race and gender issues: he knows the drill, he helped write the legislation and he is accordingly hoist on his own petard.
A yearling colt by Habitat out of Miss Petard, sent up from Cayton Park Stud, tops the day at Park Paddocks to a bid of 154,000gns from the BBA.
But by claiming bias, big Eck may be hoisted by his own petard.
Others from the Bard's most celebrated play include: Hoisted By His Own Petard, Every Dog Has His Day and There's Method In His Madness.
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.
The mission, said to have changed the course of World War Two, was actually carried out by HMS Petard before the USA began hostilities.
Then, hoist by their own petard, they will be forced to accept defeat.
747 unites de petard de differents types et marques, en provenance de la contrebande sur l'ensemble du territoire national.