福壽膏 [－寿－]

Jyutping fuk1 sau6 gou1
Pinyin fú shòu gāo

Definitions (CC-CANTO)
  1. opium (slang)
Definitions (粵典–words.hk)
  1. 名詞、舊式、黃賭毒
    鴉​片​嘅​別​名
    an innocuous sounding name for opium