2 definitions by Kargg

Top Definition
It is when one party wants to give anal sex to another party in a very rough manner.
I was at a wrestling match then a fat guy in the audience was saying "Come on DAAAAN! Let's rumplefuck!"
by Kargg November 03, 2005
It is basically a mixture of bodily fluids, which is a reference to the actual Jamba Juice store. To be specific it is basically a mixture of the water that comes out of a girl after she uses a douche and her urine. A urine and douche-water cocktail, to simplify.
Man, Megan Fox is so hot, I would drink her jamba juice!
by Kargg November 24, 2010

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