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Jyutping cou2 lung2
Pinyin cǎo lóng

Definitions (粵典–words.hk)
  1. 名詞、黃賭毒
    海洛英
    cigarette spiked with herion; literally: grass dragon

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Jyutping cou2 lung4
Pinyin cǎo lóng

Definitions (CC-CANTO)
  1. grass lizard; a cigarette spiked with heroin
Definitions (粵典–words.hk)
  1. 名詞
    一種​動物​;​蜥蜴​嘅​品​種​之一​,​又​叫​石龍子
    skink; literally "grass dragon"