If someone has gone off the rails, they have lost track of reality.

A portmanteau of carpe diem, a Latin phrase that means “Seize the Day!” and DM, which stands for Direct Messages. This word means seizing the day via DMs.

To start behaving strangely, in a way that is not acceptable to society.

When a client at a strip club cheaps out and doesn't sit at the rail, but back far enough that he can see everything without having to tip, thus spawning the term: off the rail

1. Someone that is uncontrollable in the hands of their parents, other people and themselves. Runs loose, on the streets, hase a relation with drugs, alcohol and party's.
2. A train coming off its rails during movement.

1. Someone that is uncontrollable in the hands of their parents, other people and themselves. Runs loose, on the streets, hase a relation with drugs, alcohol and party's.
2. A train coming off its rails during movement.

by hitting the rail of a pool table. It is used to describe the carom of a pool ball with the rail - usually the "end rail," meaning one of the rails adjascent to the the pocket or other target.