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Jyutping bui6 fui3
Pinyin bèi hui

Definitions (Wiktionary)
  1. adj, dialectal, of old people, usually
    muddleheaded; senile

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Jyutping bui6 fui3
Pinyin bèi huì

Definitions (CC-CEDICT)
  1. (coll.) muddleheaded
Definitions (Kaifangcidian)
  1. (沒有對應漢語詞彙)