Taste of your own medicine
指某人遭受自己曾施加于他人的同樣對待，體驗因果報應。
用于描述某人被同樣方式對待的報復情境。
英文釋義
When something happens to you that you have done to someone else.
例句
After years of teasing, he got a taste of his own medicine when others mocked him.
典故來源
源自伊索寓言，狐貍讓鶴用淺盤喝湯，鶴報復用長頸瓶，比喻以牙還牙。