[cross] (the|a) line
1
to show a behavior that is unacceptable or improper
The idiom "cross the line" likely emerged from the concept of drawing lines or boundaries to establish acceptable behavior or standards. By crossing the line, someone is symbolically stepping over that boundary, often into territory that is considered unacceptable, offensive, or morally objectionable. It is often used to describe situations where someone's actions, words, or behavior overstep what is considered acceptable, appropriate, or morally right.
- Drake has crossed many lines to get to where he is right now.
- She consistently crosses the line by making personal attacks during arguments.
- The comedian often crosses the line with their controversial jokes, causing outrage among certain audiences.
- He crossed the line when he betrayed his friend's trust by sharing confidential information.
- The politician crossed the line with their offensive remarks, resulting in widespread public backlash.