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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. (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

be 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 by your own petard

or

hoist with your own petard

FORMAL
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: hoist, own, petard

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

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: 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 ?
Petards also announced in March that its revenues had more than doubled to PS13.
The Petards contract is for P25 trunked portable and mobile radios, with the latter being used as fixed stations in vehicles and as tactical deployable units.
Before joining Petards, Baitman served as Director for the Institute for the Future, a Palo Alto-based think tank that focuses on emerging trends and discontinuities that will transform the global marketplace.
Petards Joyce-Loebl is the UK Design Organisation and co-ordinating Design Authority for the ALE-47 TACDS.
Identifier egalement les importateurs des produits pyrotechniques qui raflent 50% des benefices engendres par la commercialisation des petards qui representent, rappelle-t-on, un marche de 15 milliards de dinars.
Petards EYETRAIN systems are used on Electrostar trains, like this one in use at the Stansted Express
The contract will see Petards supply electronic counter-measures equipment, which will form part of a defensive aids suite to be installed on Royal Navy Merlin Mk 2 helicopters.
Petards mentioned that the Agreement is for an early 5 year term renewable yearly thereafter and covers the world-wide Siemens business whose portfolio includes the complete Siemens rail vehicle business ranging from locomotives, commuter, regional, intercity and high-speed trains, metros, light rail vehicles and automated people movers to passenger coaches for inter-city rail service and electric bus systems for cities as well as related services and maintenance.
Une campagne de sensibilisation aux dangers lies a l'utilisation des petards et des produits pyrotechniques a ete lancee, hier, a Khenchela, a travers les etablissements scolaires et les mosquees par les services de la Protection civile.
In a quiet day on the news front for companies in the Journal North 40 Index, Petards, the security and surveillance specialist gained 2.
Petards has also secured its first order under the agreement to supply Siemens with Petards eyeTrain on-board digital CCTV systems for the new super high-speed Velaro type trains Siemens is building for the Turkish State Railway who have announced plans to procure up to a further 90 high speed trains in the future.
Les investigations ont abouti a la saisie, au niveau du port sec de Baraki, de quatre autres conteneurs de 40 pieds, pleins de fumigenes, petards en forme de grenades ainsi que des signaux de bateau, consideres comme des armes blanches et utilises dans les rixes et les agressions.
TEAM VALLEY-based security surveillance specialists Petards Group PLC is back in the black after a successful first half to the year.
L'eradication des marches informels a permis la baisse des saisies de petards durant le dernier trimestre de l'annee 2012.
ADVANCED security and surveillance systems company Petards has been awarded a contract worth more than PS4.