家丑不可外扬

家丑不可外扬

Literally means:

domestic shame should not be made public

Actually means:

don't wash your dirty linen in public

It means shame in a household or in an organization should not be made public. It connotes people tend to conceal scandals in order to protect the reputation of a family or an organization.

家里或者某个集体内部的丑事不能对外面的人宣扬。常常指为了保全家庭或者集体的名誉而对外隐瞒不光彩的事情。