What is yiddish expression to avoid saying the wrong thing?

The Yiddish expression "ziseh shvartz" translates to "sweet black" and is often used to suggest that one should be careful with their Words to avoid saying something inappropriate or offensive. It embodies the idea of being mindful in conversation. Another common phrase is "better to keep your mouth shut," emphasizing the wisdom of silence when uncertain. These expressions reflect the cultural emphasis on discretion and sensitivity in communication.