Skidding is awesome if you grab a tray from your local Burger King and find a good straight and wide street. Bunnyhop onto the tray while going fast and lock your rear brake landing on the tray with your rear wheel.
You will skid like 100 feet or more. Plus, it just wears through the tray, not your tire.
I've seen people do this and do surfers (old locking levers) - but it's fun to do 180's and do backwards skids. You can also pretty much do full 360 skids. Kind of crazy. The same thing can be done on a skateboard. Bunnyhop, lock your brakes, land rear wheel on the skateboard.
Fun and amusing - but hardly serious. Kind of like riding a scooter or an unbike.