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Jyutping sam1 fo2 sing6
Pinyin xīn huǒ shèng

Definitions (CC-CANTO)
  1. agitated; annoyed
Definitions (粵典–words.hk)
  1. 形容詞
    容易​發​嬲
    ill-tempered; grumpy; literally: fire raging in one's heart
    • 佢呢排心火盛,最好唔好惹佢。
      佢呢排心火盛,最好唔好惹佢。
      keoi5 ni1 paai4 sam1 fo2 sing6, zeoi3 hou2 m4 hou2 je5 keoi5.
      It's better not to irritate him, as he is ill-tempered these days.
Examples (粵典–words.hk)
  1. Cantonese
    佢呢排心火盛,最好唔好惹佢。
    佢呢排心火盛,最好唔好惹佢。
    keoi5 ni1 paai4 sam1 fo2 sing6, zeoi3 hou2 m4 hou2 je5 keoi5.
    • It's better not to irritate him, as he is ill-tempered these days.