Learn English – Term for using your own words against you

literary-deviceterminology

Could anyone tell me the literary term (if one exists) for using someone's own words against them in the future. For example, in The Merchant of Venice when Shylock states he wants to 'catch Antonio once upon the hip' and later Gratiano repeats this to Shylock as an insult.

Best Answer

How about the Shakespearean hoist(ed) by one's own petard?