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Jyutping gou1 fu3 seoi3
Pinyin gāo fù shuài

Definitions (CC-CEDICT)
  1. "Mr Perfect" (i.e. tall, rich and handsome) (Internet slang)
Definitions (Wiktionary)
  1. noun, neologism, slang
    tall-rich-and-handsome guy; ideal guy; all-perfect man