When you take a super powerful, long piss after drinking a Jamba Juice smoothie. The urge to take a Jamba piss usually hits suddenly, about 30-45 minutes after finishing a smoothie, and it feels like your bladder is about to explode. There is no warning sign.
Mike: "Hey man, what are you doing in the library?"
Jim: "Not much man, just reading some... OH SHIT I GOTTA TAKE A JAMBA PISS, WATCH MY STUFF!!!"

Jim runs to the bathroom.
by J-Rich24 March 20, 2012
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