吃錯藥 [－错药]

Jyutping hek3 co3 joek6
Pinyin chī cuò yào

Definitions (CC-CEDICT)
  1. (lit.) to have taken the wrong medicine
  2. (fig.) (of one's behavior etc) different than usual
  3. abnormal
Definitions (Wiktionary)
  1. verb, colloquial
    to be out of one's mind; crazy; lunatic
    (syn.) 食错药, 食錯藥