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Jyutping lou5 pei2
Pinyin lǎo pí

Definitions (粵典–words.hk)
  1. 名詞、俚語
    即​係​脾氣
    temper; irritation
    • 唔好老脾
      唔好老脾
      m4 hou2 lou5 pei2
      bad-tempered; grumpy
    • 佢拗我唔過就發我老脾。
      佢拗我唔过就发我老脾。
      keoi5 aau3 ngo5 m4 gwo3 zau6 faat3 ngo5 lou5 pei2.
      He threw a tantrum when he lost his arguments.
Definitions (Kaifangcidian)
  1. 脾氣 – 脾气

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Jyutping lou5 pei4
Pinyin lǎo pí

Definitions (CC-CANTO)
  1. tantrum; emotional outbreak (spoken)
Definitions (Wiktionary)
  1. noun, Cantonese, informal
    temper
    (syn.) 脾气, 脾氣
    • 唔系几好老脾
      唔系几好老脾
      m4 hai6 gei2 hou2 lou5 pei2
      not very good-tempered
Examples (粵典–words.hk)
  1. Cantonese
    唔好老脾
    唔好老脾
    m4 hou2 lou5 pei2
    • bad-tempered; grumpy
  2. Cantonese
    佢拗我唔过就发我老脾。
    佢拗我唔過就發我老脾。
    keoi5 aau3 ngo5 m4 gwo3 zau6 faat3 ngo5 lou5 pei2.
    • He threw a tantrum when he lost his arguments.
  3. Cantonese
    部机hang咗,佢发老脾系噉拍部机。
    部機hang咗,佢發老脾係噉拍部機。
    bou6 gei1 heng1 zo2, keoi5 faat3 lou5 pei2 hai6 gam2 paak3 bou6 gei1.
    • The computer hung, and he kept hitting it to vent his spleen.
Examples (Wiktionary)
  1. Cantonese
    唔系几好老脾
    唔系几好老脾
    m4 hai6 gei2 hou2 lou5 pei2
    • not very good-tempered