出处：按学科分类—语言、文字 中国对外翻译出版公司《汉英成语词典》第257页（230字）
比喻用其坑害别人的办法去还治其身，即自作自受的意思，例他最爱强人干杯，这次且让我们以其人之道还治其人之身，请君入瓮。
He loves to make others drink their fill；let us do him the same favour this time and give him a dose of his own medicine．