[---]

Jyutping kai3 gaa1 po4
Pinyin qì jiā pó

Definitions (粵典–words.hk)
  1. 名詞
    已婚​男人​除​咗​老婆​之外​,​其他​同​佢​相好​嘅​女人
    a mistress; an illicit female lover
  2. 近義詞
    契家佬、老契
Definitions (Kaifangcidian)
  1. 情婦 – 情妇

[---]

Jyutping kai3 gaa1 po2
Pinyin qì jiā pó

Definitions (CC-CANTO)
  1. (n.) an insulting way to address a married man's lover; a mistress