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Jyutping song3 sam1 beng6 kwong4
Pinyin sàng xīn bìng kuáng

Definitions (CC-CEDICT)
  1. deranged
  2. demented
  3. berserk (idiom)
Definitions (粵典–words.hk)
  1. 語句
    癡​咗​線
    to be seized with crazy ideas; to lose all balance of judgement; to be unscrupulous
    • 佢竟然食咗佢女朋友,真係喪心病狂啊。
      佢竟然食咗佢女朋友,真系丧心病狂啊。
      keoi5 ging2 jin4 sik6 zo2 keoi5 neoi5 pang4 jau5, zan1 hai6 song3 sam1 beng6 kwong4 aa3.
      He went mad and ate his girlfriend.
Definitions (Wiktionary)
  1. phrase, idiomatic
    frenzied; crazy; ridiculous
Definitions (Kaifangcidian)
  1. (沒有對應漢語詞彙)
Examples (粵典–words.hk)
  1. Cantonese
    佢竟然食咗佢女朋友,真系丧心病狂啊。
    佢竟然食咗佢女朋友,真係喪心病狂啊。
    keoi5 ging2 jin4 sik6 zo2 keoi5 neoi5 pang4 jau5, zan1 hai6 song3 sam1 beng6 kwong4 aa3.
    • He went mad and ate his girlfriend.