The act of hauling ass on your skateboard and slapping it into a curb at an angle that gets you on top of it and grinding. There are many variations but a true slappy involves speed and grinding...John Lucero, Ricky Winsor, Natas Kaupas and many others are known slappy legends.

Riding down stairs on your wheely board. Most people think it's pretty easy. Then again, most people can't stand on a skateboard.