dirty linen
US /ˈdɜːr.t̬i ˈlɪn.ɪn/
UK /ˈdɜːr.t̬i ˈlɪn.ɪn/

1.
家丑, 私事
private and embarrassing matters that one would prefer to keep secret
:
•
They aired their dirty linen in public during the divorce proceedings.
他们在离婚诉讼中公开了他们的家丑。
•
It's best not to discuss your family's dirty linen with strangers.
最好不要和陌生人讨论你家的家丑。