What does Were you raised in a barn mean?

"Were you raised in a barn?" is an idiom used to express disapproval of someone's manners, especially when they are considered rude or ill-mannered. It implies that the person lacks basic social etiquette or common sense, and that their behavior is more appropriate for a barn animal than a human being.

For example, someone might say "Were you raised in a barn?" to a person who talks loudly, interrupts others, or fails to show basic courtesy in social situations. The phrase is often used as a rhetorical question to emphasize the speaker's frustration or annoyance, rather than a literal inquiry about the person's upbringing.