Akademik

personal matters that could be embarrassing if made public

: private or domestic matters whose exposure in public would bring shame or embarrassment — compare wash one's dirty linen in public

personal or private matters that could cause embarrassment if made public: You didn't have to air our dirty linen to all your friends! Also called dirty laundry.

[1945-50]

dirty linen noun (informal)

Personal problems or grievances (esp in the phrase wash one's dirty linen in public to discuss private matters publicly)

Main Entry: ↑dirt