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Jyutping ceot1 waang4 sau2
Pinyin chū héng shǒu

Definitions (粵典–words.hk)
  1. 動詞
    同使​橫手
    to behave in an underhand manner; to act improperly; literally: to show an horizontal hand
Definitions (Kaifangcidian)
  1. 使出不光彩的手段

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Jyutping ceot1 waang4 sau2
Pinyin chū guāng shǒu

Definitions (CC-CANTO)
  1. to do dirty trick to achieve something, cheat