Curbed Out

Passed out or nodded out from drugs/alcohol in the front seats of a vehicle, both parked and moving.

“Trent wake up! You’re hella curbed out and I need you to navigate”

“I was way curbed out driving home last night, I coulda wrecked.”

Origin: A friend of a friend had a job as a driver for UPS or FedEx or some shit, but also had a drug problem. He would be at work and start nodding out while driving, either from drug use or last of sleep partying too hard. As he momentarily fell asleep he would wake up when his truck smashed into the curb. Eventually it came to mean generally falling asleep in a car or somewhere you shouldn’t be sleeping, with the likelyhood of a not-so pleasant wake up.