(1) the act of being pulled by a vehicle (car, truck, tractor, etc.) while either riding on a skateboard, skates, bicycle, handcart, etc.

(2) the act of being dragged from the rear bumper of a vehicle during winter months when there is a lot of snow present. Children do this by waiting at stop signs to grab onto unsuspecting cars while they stop and being dragged while sliding their feet on the snow.

When you eat dirt for the first time and leave your family to build a shack in the woods

The act of being pulled by a mechanized conveyance(car, truck, tractor, etc) while operating a non-mechanized conveyance (skateboard, skates, bicycle, handcart, etc). Extremely dangerous but a lot of fun, as you get going wicked fast.

Sneaking up on a person and coming on their face.

This is the act of removing both of your feet form the pegs of a moving motorcycle and placing them both on either side of the bike or behind the bike. If you have metal sliders on the bottoms of your boots, sparks will fly form the backs of them.

The awkwardly choreographed post-sex humping crab-walk toward the Kleenex so as to prevent an early pull out and semen leaking out all over the bed/couch/kitchen table/boss' desk etc.

Being under the influence of Meth. Usually after being up for a couple days and probably paranoid.