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the act of rollin' coal. When you have a tune on your diesel truck or have turned up the injection pump and you mash the throttle overfueling the engine until the turbo spools up, producing a large cloud of thick black smoke. Its fun to do, but you can't go around doin it all the time as enviromentaists hate us enough already
Did you see me roll coal all over that group of enviromentalist protesting the diesel truck lot?
by 05_PSD July 30, 2009
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