A person who hangs out with, or has sex with, individuals who freely supply drugs/booze to person to compensate for their companionship/sexual acts/ect.
Kat is turning out to be quite the rock jumper these days. She was temporarily residing with brian and doing dope, now she is smoking for free with J. It must be her ass cuz it ain't her face, dude.
by ShiloeWolf December 05, 2017