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Jyutping gong2 mung6 waa6
Pinyin jiǎng mèng huà

Definitions (Wiktionary)
  1. verb, dialectal
    to talk in one's sleep; to sleeptalk
    (syn.) 講夢, 講狂話, ngigau, 睏講, 打夢講, 說睡話, 狂眠, 講離話, 夢囈, 財開口夢, 陷眠, 睡說, 發開口夢, 呾夢話, 講懵, 講懵話, 講夜話, 鬼眠, 話睏話, 發夢話, 講眠夢話, 囈語, 講夢話, 發夢天, 說睏話, 開口夢, 做響夢, 話夢話, 發囈似, 打夢話, 說睡語, 打開聲夢講, 說胡話, 說夢話, 說睏話兒, 發囈怔