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Jyutping fo2 soeng6 giu1 jau4
Pinyin huǒ shàng jiāo yóu

Definitions (CC-CEDICT)
  1. to pour oil on the fire (idiom); fig. to aggravate a situation
  2. to enrage people and make matters worse
Definitions (Wiktionary)
  1. phrase, idiomatic
    to add fuel to the fire (to worsen a conflict)
    (syn.) 火上加油, 火缽添油, 加櫼, 加鋼兒, 火上澆油
Examples (粵典–words.hk)
  1. Cantonese
    火上浇油
    火上澆油
    • to pour oil to fire; to make something worse