Used to describe any person driving a vehicle in an erratic manner such that it inconveniences other drivers.The connotation implies that he/she is high on some type of substance.
Driver overtakes other vehicles crossing double white lines approaching crest of a hill.Look at that Juice-freak trying to kill someone.
Driver reversing on a freeway.What a juice-freak
A serious steriod user.
"Damn, dude just benched 600 lbs!! He has to be a juice-freak!"