家醜不得外傳 [－丑－－－传]

Jyutping gaa1 cau2 bat1 dak1 ngoi6 cyun4
Pinyin jiā chǒu bù dé wài chuán

Definitions (粵典–words.hk)
  1. 語句
    指​屋企​（​或者​引申​到​學校​、​公司​、​組織​等​）​入​面​嘅​醜​事​，​唔​應該​俾​外人​知道​，​應該​私下​處理
    bad things about one's family (or school, company, organisation, etc.) should not be aired to outsiders, and should be settled within the circle
  2. 參看
    家醜不出外揚、家醜不可外揚、家醜不出外傳、家醜不可外傳