τοῖς οἰκείοις βουλεύμασιν ἁλίσκεσθαι → hoist by one's own petard, hoist with one's own petard, hoist on one's own petard, hoisted by one's own petard, be hoist with one's own petard
Bonmot, facete od. belle dictum. breviter ac commode dictum. bonum dictum. auch bl. dictum (im allg.). – salse dictum (Einfall sarkastischer Art).