以其人之道，還治其人之身 [－－－－－－还－－－－－]

Jyutping ji5 kei4 jan4 zi1 dou6 ， waan4 zi6 kei4 jan4 zi1 san1
Pinyin yǐ qí rén zhī dào ， huán zhì qí rén zhī shēn

Definitions (Wiktionary)
  1. phrase, idiomatic
    to pay back with the opponent's own method; to give the enemy a taste of their own medicine; an eye for an eye

以其人之道，還治其人之身 [－－－－－－还－－－－－]

Jyutping ji5 kei4 jan4 zi1 dou6 , waan4 zi6 kei4 jan4 zi1 san1
Pinyin yǐ qí rén zhī dào , huán zhì qí rén zhī shēn

Definitions (CC-CEDICT)
  1. to use an opponent's own methods to obtain retribution (idiom, from Song dynasty neo-Confucianist Zhu Xi 朱熹[Zhu1 Xi1])
  2. to get revenge by playing sb back at his own game; to give sb a taste of his own medicine