Get a taste of your own medicine Informal

To experience the same unpleasant treatment that you have previously given to others. The expression stresses reversal and poetic justice rather than simply learning from personal experience.

Medicine was once commonly associated with bitter or unpleasant remedies, which made it a natural image for something a person would rather not swallow. In this expression, the remedy is metaphorical: someone who has administered harsh treatment must now take a dose of it themselves. The idea of giving a person a taste of their own medicine developed in English as a vivid way of describing reciprocal treatment and retribution. It does not require a literal doctor, prescription or medical episode. The word taste is significant: even a small sample can be enough to make the offender understand what others endured. Over time the expression became a familiar comment on everyday reversals, from teasing and bullying to workplace behavior. It may express satisfaction at a deserved lesson, though the speaker need not approve of retaliation.

He kept interrupting everyone until his colleagues gave him a taste of his own medicine.

After years of mocking beginners, he got a taste of his own medicine in his first dance class.

She finally gave the prankster a taste of his own medicine.