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Jyutping jat1 jin4 bun3 geoi3
Pinyin yī yán bàn jù

Definitions (Wiktionary)
  1. phrase, idiomatic
    Synonym of 一言半語/一言半语 (yīyánbànyǔ, “a few words”).
    (syn.) 一言半語, 一言半语