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Jyutping jaak3 si2
Pinyin yě shǐ

Definitions (粵典–words.hk)
  1. 動詞、粗俗
    用​嚟​鬧​人​,​即​係​食​屎
    a vulgar way to express contempt or to tell someone to leave, "go eat shit", "eat shit and die!".
  2. 近義詞
    吔茄、食屎
  3. 參看
    喫屎

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Jyutping jaa1 si2
Pinyin ye shǐ

Definitions (CC-CANTO)
  1. eat shit, which is also similar to go fuck yourself