蟾宮折桂 [－宫－－]

Jyutping sim4 gung1 zit3 gwai3
Pinyin chán gōng zhé guì

Definitions (CC-CEDICT)
  1. lit. plucking a branch of osmanthus from the Toad Palace (i.e. the moon)
  2. fig. to succeed in the imperial examination
Definitions (Wiktionary)
  1. phrase, historical, idiomatic
    to pass the imperial examination