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Jyutping gaap3 hau2 gung1
Pinyin jiā kǒu gòng

Definitions (CC-CANTO)
  1. to compose the confession/ testimony with someone, to make sure two people both say the same things
Definitions (粵典–words.hk)
  1. 動詞
    同​其他人​一齊​俾​假證供
    to conspire to give fake statements
    • 兩個證人句句都一樣,仲唔係夾口供?
      两个证人句句都一样,仲唔系夹口供?
      loeng5 go3 zing3 jan4 geoi3 geoi3 dou1 jat1 joeng6, zung6 m4 hai6 gaap3 hau2 gung1?
      Their testimonies are identical word for word. The two witnesses conspired to give false statements, didn't they?
  2. 動詞
    一齊作​一個​故仔​,​然後再​其他人​講​,​以免​大家​講​嘅​嘢​有​矛盾
    to come up with a coherent story before telling others
Definitions (Kaifangcidian)
  1. 串通口供
  2. 統一口供 – 统一口供
Examples (粵典–words.hk)
  1. Cantonese
    夹口供
    夾口供
    gaap3 hau2 gung1
    • to conspire with others to give fake statements
  2. Cantonese
    两个证人句句都一样,仲唔系夹口供?
    兩個證人句句都一樣,仲唔係夾口供?
    loeng5 go3 zing3 jan4 geoi3 geoi3 dou1 jat1 joeng6, zung6 m4 hai6 gaap3 hau2 gung1?
    • Their testimonies are identical word for word. The two witnesses conspired to give false statements, didn't they?
Examples (Wiktionary)
  1. Cantonese
    夹口供/夹口供
    夾口供/夹口供
    ― gaap3 hau2 gung1
    • X