dirty linen

noun
1.
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.
Origin
1945-50
Slang definitions & phrases for dirty laundry

dirty laundry

noun phrase

Personal or family matters; intimate details: I won't hang out our dirty linen in front of this bunch (1860s+)

Related Terms

wash one's dirty linen