From Wiktionary, the free dictionary
hoist with one's own petard
- Alternative form of hoist by one's own petard
2022 February 6, William Keegan, “Pinter never created a comedy as dark as the Brexit party”, in The Guardian[1], →ISSN:Not to put too fine a point on it, the leader who “got Brexit done” has, in that very act, been hoist with his own petard.
