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Jyutping hau2 hing1 hing1
Pinyin kǒu qīng qīng

Definitions (Wiktionary)
  1. verb, Cantonese
    to make promises casually; to speak glibly; to speak without thinking about the consequences

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Jyutping hau2 heng1 heng1
Pinyin kǒu qīng qīng

Definitions (CC-CANTO)
  1. to describe when someone makes promises casually without considering it thoroughly
Definitions (粵典–words.hk)
  1. 副詞
    隨便​就​做​承諾
    to make promises lightly
    • 你做乜口輕輕應承佢結婚呀,冇晒自由架你。
      你做乜口轻轻应承佢结婚呀,冇晒自由架你。
      Why do you promise marrying her so easily. Marriage is a grave.
Definitions (Kaifangcidian)
  1. 隨便許諾 – 随便许诺
  2. 愛說大話 – 爱说大话
  3. 言而無信 – 言而无信
Examples (粵典–words.hk)
  1. Cantonese
    你做乜口轻轻应承佢结婚呀,冇晒自由架你。
    你做乜口輕輕應承佢結婚呀,冇晒自由架你。
    • Why do you promise marrying her so easily. Marriage is a grave.