Used in situations that might offend or upset others due to differing values or beliefs. His joke about religions crossed the line for many people in the room.
Pro Tip 2/3
Emotional Tone
Conveys disapproval when someone does something considered wrong or inappropriate. You cross the line when you make fun of someone's appearance.
Pro Tip 3/3
Relationship Boundaries
Highlights behaviors that are unacceptable in personal or professional relationships. He crossed the line by reading her personal diary without permission.