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Jyutping ham6 gaa1 fu3 gwai3
Pinyin kǎn jiā fù guì

Definitions (粵典–words.hk)
  1. 語句、粗俗
    冚​家​剷​嘅​委婉​語
    a curse, an expression of anger, irritation, annoyance, etc. at someone or at a situation; a euphemistic version of 冚家鏟 ham6 gaa1 caan2.
  2. 近義詞
    冚家鏟
Definitions (Wiktionary)
  1. phrase, Cantonese, offensive, sarcastic
    Synonym of 冚家鏟/冚家铲.
    (syn.) 冚家拎, 冚家祥, 冚家鏟, 冚家铲
Definitions (Kaifangcidian)
  1. 全家倒楣

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Jyutping gam2 gaa1 fu3 gwai3
Pinyin kà jiā fù guì

Definitions (CC-CANTO)
  1. curse one's family to suffer or die (derogatory)