don't wash your dirty linen in public

The phrase "don't wash your dirty linen in public" is an idiomatic expression that means one should not discuss or reveal personal or private matters, especially unpleasant or embarrassing details, in front of others or in a public setting. It suggests that it is better to keep personal conflicts, problems, or family issues confidential rather than exposing them to public scrutiny or gossip. The phrase emphasizes the importance of maintaining dignity, privacy, and discretion.