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Jyutping hei1 gwan1 mong5 soeng6
Pinyin qī jūn wǎng shàng

Definitions (CC-CEDICT)
  1. to dupe one's sovereign
Definitions (CC-CANTO)
  1. to deceive a ruler
Definitions (Wiktionary)
  1. phrase, idiomatic
    to deceive the emperor or monarch