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Jyutping syun3 naa5 gan1 cung1
Pinyin suàn něi gēn cōng

Definitions (Wiktionary)
  1. phrase, Internet
    Who does [someone] think [someone] is? / [Someone] is nobody.

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Jyutping syun3 naa5 gan1 cung1
Pinyin suàn nǎ gēn cōng

Definitions (CC-CEDICT)
  1. who do (you) think (you) are?
  2. who does (he, she etc) think (he, she) is?
Definitions (Wiktionary)
  1. phrase, Internet
    Who does [someone] think [someone] is? / [Someone] is nobody.