he tweeted the same thing about Anthony Weiner, 100% cannot be cured....
talk about being hoisted on your own petard
It's by or with not on. Trump was hoisted by his own petard. Which given the possible origin of the word is quite fitting:
A petard is, or rather was, as they have long since fallen out of use, a small engine of war used to blow breaches in gates or walls. They were originally metallic and bell-shaped but later cubical wooden boxes. Whatever the shape, the significant feature was that they were full of gunpowder - basically what we would now call a bomb.
The device was used by the military forces of all the major European fighting nations by the 16th century. In French and English - petar or petard, and in Spanish and Italian - petardo.
The dictionary maker John Florio defined them like this in 1598:
"Petardo - a squib or petard of gun powder vsed to burst vp gates or doores with."
The French have the word 'péter' - to fart, which it's hard to imagine is unrelated....
http://www.phrases.org.uk/meanings/hoist-by-your-own-petard.html
