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Jyutping hau2 seoi2 mei1
Pinyin kǒu shuǐ wěi

Definitions (粵典–words.hk)
  1. 名詞
    其他人​食​過​嘅​嘢​,​或者​佢​哋​餐具​掂​過​嘅​食物
    food that has been eaten by others or touched by their cutlery; literally: rear end of saliva
    • 食人口水尾
      食人口水尾
      sik6 jan4 hau2 seoi2 mei1
      to eat someone else's leftovers
  2. 名詞
    其他人​講​過​嘅​嘢
    something that has been said before
    • 唔好執人口水尾,畀啲自己嘅意見。
      唔好执人口水尾,畀啲自己嘅意见。
      m4 hou2 zap1 jan4 hau2 seoi2 mei1, bei2 di1 zi6 gei2 ge3 ji3 gin3.
      Don't just repeat what others have said. Give me your own opinion.

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Jyutping hau2 seoi2 mei5
Pinyin kǒu shuǐ wěi

Definitions (CC-CANTO)
  1. leftover food or drinks/one saying words which were just spoken from others
Definitions (Wiktionary)
  1. noun, Cantonese
    spray of saliva; spittle
    • 食人口水尾
      食人口水尾
      sik6 jan4 hau2 seoi2 mei1
      to eat someone else's leftovers
Examples (粵典–words.hk)
  1. Cantonese
    写论文执人口水尾而唔写明出处就系剽窃。
    寫論文執人口水尾而唔寫明出處就係剽竊。
    se2 leon6 man2 zap1 jan4 hau2 seoi2 mei1 ji4 m4 se2 ming4 ceot1 cyu5 zau6 hai6 piu5 sit3.
    • Echoing others' words in your own essay without attributing a source is plagiarism.
  2. Cantonese
    佢份人冇咩谂法,净系识得执人口水尾。
    佢份人冇咩諗法,淨係識得執人口水尾。
    keoi5 fan6 jan4 mou5 me1 nam2 faat3, zing6 hai6 sik1 dak1 zap1 jan4 hau2 seoi2 mei1.
    • He himself seldom thinks, what he does is to regurgitate what others had said before.
  3. Cantonese
    食人口水尾
    食人口水尾
    sik6 jan4 hau2 seoi2 mei1
    • to eat someone else's leftovers
  4. Cantonese
    唔好执人口水尾,畀啲自己嘅意见。
    唔好執人口水尾,畀啲自己嘅意見。
    m4 hou2 zap1 jan4 hau2 seoi2 mei1, bei2 di1 zi6 gei2 ge3 ji3 gin3.
    • Don't just repeat what others have said. Give me your own opinion.
Examples (Wiktionary)
  1. Cantonese
    食人口水尾
    食人口水尾
    sik6 jan4 hau2 seoi2 mei1
    • to eat someone else's leftovers