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Jyutping lou5 ji4 bat1
Pinyin lǎo ér bù

Definitions (CC-CANTO)
  1. a licentious old man
Definitions (粵典–words.hk)
  1. 名詞
    年老​而​冇​德行​、​行為​唔​檢點​,​或者​唔​值得尊敬​嘅​人​,​來​自​《​論語​》​「​老而不死​,​是​為​賊​」
    an ill-behaved, non-respectable old person, old bugger. Literally: old and not (die)
    • 呢個阿伯正一老而不,咁大年紀仲去非禮女仔。
      呢个阿伯正一老而不,咁大年纪仲去非礼女仔。
      This old man is an old bugger, he even sexual harassed a girl in this old age.
  2. 近義詞
    死老嘢
Definitions (Wiktionary)
  1. noun, Cantonese
    old person who has not yet died
Definitions (Kaifangcidian)
  1. 老不正經 – 老不正经
  2. 老而不死
  3. 老王八蛋
Examples (Tatoeba—Mandarin-English)
  1. Mandarin
    你永远不会太老而不能学习。
    你永遠不會太老而不能學習。
    nǐ yǒng yuǎn bù huì tài lǎo ér bù néng xué xí 。
    • It's never too late to learn.
    • You will never be too old to learn.
  2. Mandarin
    没有人会因为太老而不能学习。
    沒有人會因為太老而不能學習。
    méi yǒu rén huì yīn wèi tài lǎo ér bù néng xué xí 。
    • Nobody is too old to learn.
Examples (粵典–words.hk)
  1. Cantonese
    呢个阿伯正一老而不,咁大年纪仲去非礼女仔。
    呢個阿伯正一老而不,咁大年紀仲去非禮女仔。
    • This old man is an old bugger, he even sexual harassed a girl in this old age.