顛鸞倒鳳 [颠鸾－凤]

Jyutping din1 lyun4 dou2 fung6
Pinyin diān luán dǎo fèng

Definitions (CC-CEDICT)
  1. to have sexual intercourse
Definitions (Wiktionary)
  1. phrase, euphemistic, idiomatic
    to make love
  2. phrase, idiomatic
    not in order