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Jyutping fi4 li1 fe4 nei4
Pinyin fēi lī fēi ne

Definitions (Wiktionary)
  1. adj, Cantonese
    Used to describe when someone is crying tremendously
  2. adj, Cantonese
    Used to describe when someone is talking fast

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Jyutping fi4 li1 fe4 le4
Pinyin fēi li fēi ne

Definitions (CC-CANTO)
  1. gabbling, describes someone who talks rapidly with unclear articulation