瘋藥 [疯药]

Jyutping fung1 joek6
Pinyin fēng yào

Definitions (Wiktionary)
  1. noun, Malaysia, Singapore, Thailand
    ecstasy; MDMA (Classifier: 顆／颗 m; 粒; 枚)
    (syn.) 揈头丸, 爱它死, 狂藥, E仔, 搖頭丸, 狂药, 揈頭丸, 摇头丸, 衣服, 愛它死, 快樂丸, 快乐丸