Petard Hoisting
"Hoist with his own petard" is a phrase from William Shakespeare's Hamlet that has entered proverbial use in English. The literal meaning was a bomb-maker being blown off the ground (hoisted) by his own bomb (petard). It commonly refers to an ironic reversal in which one is taken down by one's own scheme.
In modern vernacular usage of the idiom, the preposition "with" is commonly exchanged for a different preposition, particularly "by" (i.e. "hoist by his own petard").