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2.
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
by Maroochy December 12, 2005
 
1.
A serious steriod user.
"Damn, dude just benched 600 lbs!! He has to be a juice-freak!"
by Fatt Scott February 13, 2012