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95页（258字）
比喻用其坑害别人的办法去整治他自己，即自作自受的意思，例他最爱强人干杯，这次我们要以其人之道还治其人之身，请君入瓮。
He is always getting others to drink every drop in their wine．This time we are going to give him a dose of his own medicine and make him do the same．