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Jyutping fang4 tau4 jyun2
Pinyin hōng tóu wán

Definitions (Wiktionary)
  1. noun, Cantonese
    ecstasy (drug)
    (syn.) 爱它死, 疯药, 狂藥, E仔, 搖頭丸, 狂药, 摇头丸, 衣服, 愛它死, 快樂丸, 快乐丸, 瘋藥

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Jyutping fing6 tau4 jyun2
Pinyin hōng tóu wán

Definitions (粵典–words.hk)
  1. 名詞、黃賭毒
    毒品​之一​,​又​叫​E​仔​,​因為​食​咗​之後會​好​興奮​,​不斷​搖頭​,​所以​叫​揈​頭​丸
    ecstasy; strong hallucinating drug; literally: shake head pill
  2. 參看
    fing頭丸
Definitions (Kaifangcidian)
  1. 搖頭丸 – 摇头丸
Examples (粵典–words.hk)
  1. Cantonese
    揈头丸
    揈頭丸
    fing6 tau4 jyun2
    • ecstasy (drug)