off-the-rail 

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.

Seven ball: corner pocket - off-the-rail.

off-the-rail by tomtiguy November 13, 2006

Off the Rail 

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

Stripper to another: I wish they would ban that perv, all he does is pay the door charge, nurse one drink for like 2 hours and sit off the rail so he doesn't have to tip. What a loser.

Off the Rail by sarasplayroom.com November 10, 2009

off the rails

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

I've gone off the rails... you should try it.

off the rails by zxcvbnm2123 October 7, 2010

off the rails

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

He went off the rails in his twenties and started living on the streets.

off the rails by johnRJ August 5, 2006

Off the rails

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.

Oh yeah mate he's off the rails
Yeah I saw that train off the rails aye

Off the rails by YOUR COOKED June 11, 2016

flying off the rails 

when you really just yeet on the enemy team in black ops 4

David (before playing black ops): Guys, I'm bout to fly off the fucking rails.

David (while playing black ops): I'm flying off the rails!

flying off the rails by yeetusmaximus9000 October 24, 2018

Off the rails

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.

Oh yeah mate he's off the rails
Yeah I saw that train off the rails aye

Off the rails by YOUR COOKED June 11, 2016