Grinding- When you jump onto a rail or step and slide across the surfave of it.
Street Skating- When you skate around your town grinding at schools and churchs or wherever.
Vert Skating- Skating half-pipes and stuff.
Topside- A variation of a grind that consists of the wheels of your soul being ontop of what you are grinding.
Backside- A variation of a grind that your back must be facing what you are grinding.
Lead foot- The foot that leads is the one that is in front and is the way that you are traveling during a grind.
Trail Foot- The foot that trails is the one that is not leading (duh).
Flat rock- A wheel setup that is when all your wheels are touching the ground.
Anti Rocker- A wheel setup that is when your back and frontwheel is touching and your two middle wheels are smaller.
Chunking- When the rubber from your wheels are coming of in chunks.
Bail- Jumping out of a move in desperation of landing.