a taste of their own medicine
US /ə teɪst əv ðɛr oʊn ˈmɛdɪsɪn/
UK /ə teɪst əv ðɛr oʊn ˈmɛdɪsɪn/
1.
experiencing the same unpleasant treatment that one has given to others
:
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After all the pranks he played, it was time for him to get a taste of his own medicine.
•
She was always criticizing others, so it was ironic when she got a taste of her own medicine.