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1.
Sliding on your butt, on a preferably wet and snowy hill, racing your friends to the bottom.
Tyla slid on her butt to the bottom, perfecting the Mariokarting slide.
by BobdaBuilderr November 03, 2009
 
2.
Mario Karting:

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".
by Devastez July 05, 2011