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Jyutping zi6 daa2 zeoi2 baa1
Pinyin zì dǎ zuǐ ba

Definitions (CC-CANTO)
  1. literally: to slap one's own face; to contradict oneself
Definitions (粵典–words.hk)
  1. 語句
    作出​自相矛盾​嘅​言​論
    to contradict oneself while speaking
    • 佢講嘢成日自打嘴巴。
      佢讲嘢成日自打嘴巴。
      keoi5 gong2 je5 sing4 jat6 zi6 daa2 zeoi2 baa1.
      He's always contradicting himself.
Definitions (Kaifangcidian)
  1. (沒有對應漢語詞彙)
Examples (粵典–words.hk)
  1. Cantonese
    佢讲嘢成日自打嘴巴。
    佢講嘢成日自打嘴巴。
    keoi5 gong2 je5 sing4 jat6 zi6 daa2 zeoi2 baa1.
    • He's always contradicting himself.