When you and your homeboy double team a Mexican chick. Thats pretty much it. But thats how it starts. The double dicking must be done simultaneously to apply to this definition.
Last night, this chick Juanita, was into both of us gringos. We convinced her to come home with us and had the most amazing double dicker taco.
A totally rad version of an Upper Decker. This act usually requires two fecal filled individuals. First open up the top part of the recipients toilet and pinch a few hefty loaves inside. The next step is to shit in the toilet bowl. first a layer of toilet paper, then crap on top, then another layer of toilet paper so its sure to leave a nice clog. The recipient will try to flush the mess down the toilet but be pleasantly surprised with a brown whirlpool of shit. even if they try to plunge it, more shit water will come to the scene.