In horse racing, a horse is carted away from the track because it couldn't finish the race due to injury and is unable to walk on its own.
For humans:
To be physically carried from a bar or party by
friends, bouncers, local authorities, and/or
random people because of great intoxication and the inability to walk. Person is then placed into a vehicle and driven away.
To be taken away in a police van from a party, bar, or for general
hell raising.