Definition of be hoist with (or by) one's own petard in English:

be hoist with (or by) one's own petard

phrase

historical
  • Have one's plans to cause trouble for others backfire on one.

    • ‘But it is hard not to enjoy the fact that liberals now find themselves hoist by their own petard.’
    • ‘Charges of working against the interests of your own country are very slippery things, and may get the one making the charges hoisted by his own petard someday.’
    • ‘He's been at if for years and he finally got hoisted by his own petard.’
    • ‘But, with any luck, he may soon be hoisted by his own petard.’
    • ‘‘‘I've been hoist by my own petard many times,’ McCain said, musing, ‘but if I think a thing is not right, I have my say.’’
    • ‘Of course, I may be hoist with my own petard, but I'm prepared to take my chances.’
    try to do too much, overestimate one's ability, overdo it, overstretch oneself, strain oneself, burn oneself out, wear oneself out, go too far, try to be too clever, try to be too smart, bite off more than one can chew, be too clever by half, have too many irons in the fire, have too many balls in the air, defeat one's own ends, have one's scheme backfire on one, have one's scheme boomerang on one, be hoist with one's own petard
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