hoist by one's own petard in Italian — Translation

cadere nella propria trappola

adj

(idiomatic) Hurt or destroyed by one's own plot or device intended for another; "blown up by one's own bomb".

darsi la zappa sui piedi

adj

(idiomatic) Hurt or destroyed by one's own plot or device intended for another; "blown up by one's own bomb".

fare autogol

adj

(idiomatic) Hurt or destroyed by one's own plot or device intended for another; "blown up by one's own bomb".