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Jyutping gu2 zuk1
Pinyin gǔ zhòu

Definitions (Wiktionary)
  1. verb, literary
    to curse somebody; to place a jinx

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Jyutping gu2 zuk1
Pinyin gǔ zhù

Definitions (CC-CEDICT)
  1. to curse sb
  2. to place a jinx