Dirty linen refers to a private or embarrassing matter that someone wants to keep hidden from others. There are a number of synonyms for this expression, including family secrets, skeletons in the closet, shameful secrets, personal scandal, and hidden shame. These phrases capture the idea of something that is kept hidden away, yet has the power to cause embarrassment or shame if revealed. Other possible synonyms include dark secrets, hidden flaws, personal mistakes, and past indiscretions. Whatever the precise words used to describe such matters, they represent a reminder that even the most private aspects of our lives can have a powerful impact on our relationships and reputations.