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Jyutping naam4 bat1 naam4 neoi5 bat1 neoi5
Pinyin nán bù nán nǚ bù nǚ

Definitions (Wiktionary)
  1. proverb
    neither male nor female; androgynous
  2. proverb
    men are not like men and women are not like women
  3. proverb, archaic
    neither fish, flesh, nor good red herring