派綠帽 [－绿－]

Jyutping paai3 luk6 mou2
Pinyin pài lǜ mào

Definitions (粵典–words.hk)
  1. 動詞
    老婆​（​或​女伴​）​同​其他​男人​發生​感情​關​係​或​性關​係
    (wife or girlfriend) to have sexual relations with another man; literally: to give a green hat