Derived from "making bears," originally popularized as a euphemism for a bowel movement by Mrs. Cartman of South Park fame, making "juice bears" is when you are stricken with diarrhea.
by Victor Spoilz June 14, 2010
"It looks like I'm having a rave for one, only my feet are fixed and my glowstick is leaking bear juice."
by PuerScelestus February 15, 2014