Mario Karting can be observed when an individual attempts to drive a vehicle while under the influence of various narcotics & is most commonly associated with "candy flipping".
Although LSD & MDMA are the base ingredients for a true Mario Karting experience this can be further enhanced by adding to the mix such marvels as Valium, Nitrous Oxide & Marijuana Leaf - this list is not exhaustive.
Jimmy thought it'd be a good idea to go Mario Karting after a wild night out. He turned up the dial on his stereo & decided on some filthy ragga jungle for the ride. The tunes were banging & the roads were swerving but Jimmy thought he was doing just fine. His foot was down & with him bearing down on the destination he was seeking all of a sudden out of nowhere... WHAM. Poor Jimmy became the "Madcapped Parked Car Killer Man".