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Jyutping jat1 faat3 bat1 ho2 sau1 sap6
Pinyin yī fā bù kě shōu shi

Definitions (CC-CEDICT)
  1. once it gets started there's no stopping it
Definitions (粵典–words.hk)
  1. 語句
    開始​咗​就​冇​辦法​制止​、​處理
    "cannot be stopped once started", an expression usually used to indicate the results are disastrous or lead to chaos
Definitions (Wiktionary)
  1. phrase, idiomatic
    to get out of hand
Definitions (Kaifangcidian)
  1. (沒有對應漢語詞彙)
Examples (None)
  1. Cantonese
    我对大人嘅景仰,有如滔滔江水,连绵不绝,又有如黄河泛滥,一发不可收拾。
    我對大人嘅景仰,有如滔滔江水,連綿不絕,又有如黃河氾濫,一發不可收拾。