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Jyutping ngau4 ziu6 maau5 daan1
Pinyin niú jué mǔ dān

Definitions (Wiktionary)
  1. phrase, idiomatic
    not knowing the value of food, hence wasting it
    (syn.) 暴殄天物

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Jyutping ngau4 ziu6 maau5 daan1
Pinyin niú jué mǔ dan

Definitions (CC-CANTO)
  1. to not have the palate for refined food