dose of one's own medicine

dose of one's own medicine idiom
Also, taste of one's own medicine. Repayment or retaliation, as in It's time we gave them a dose of their own medicine and simply forget to call them back, or Joe was upset at being left out, but they were just giving him a taste of his own medicine. [Late 1800s]

The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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