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Jyutping sau2 waat6
Pinyin shǒu huá

Definitions (Wiktionary)
  1. verb, colloquial
    to have a slip of the hand; to do something by mistake (“unintentionally” with one's hand)
    (syn.) 手欠
Definitions (Kaifangcidian)
  1. (沒有對應漢語詞彙)

手滑 [--]

Jyutping
Pinyin shǒu huá

Definitions (CC-CEDICT)
  1. to do sth by mistake (with one's hand)
  2. to make a slip of the hand (e.g. click the wrong button)