dirty linen

US /ˈdɜːr.t̬i ˈlɪn.ɪn/
UK /ˈdɜːr.t̬i ˈlɪn.ɪn/
"dirty linen" picture
1.

家醜, 私事

private and embarrassing matters that one would prefer to keep secret

:
They aired their dirty linen in public during the divorce proceedings.
他們在離婚訴訟中公開了他們的家醜
It's best not to discuss your family's dirty linen with strangers.
最好不要和陌生人討論你家的家醜