A larger than average wave, usually (if your lucky) there are multiple waves in a set.

Usually a surfboard under 7 feet with a sharply tapered nose, three fins, and built for performance and/or tricks. Countless variations exist with anywhere from 1 to 5 fins and various shapes. Generally ridden by younger, lighter surfers. Often ridden by people who are not ready for them which causes the side effects of crippling their style and fluidity while making bad habits harder to unlearn later. Many shortboarders would be happier on an egg, longboard, fish, or "fun" board but cant get over the need to be cool. Their maneuverability, makes mind blowing things possible but it comes at a price. They are harder to surf well, harder to catch waves on, and break easier but arguably more challenging and rewarding.

When a powerful and hollow wave breaks it forces the air out of the barrel with so much force that it shoots a hard fast mist of water out with it.

The thin strip of wood that runs down the center of a surfboard used to stiffen and strengthen the board. Usually there is only one but there can be 3 or even more, especially on longboards and weird twin fin shortboards made by crazy awesome shapers. They can be made of any type of wood including balsa, redwood, foam and other materials. They can also be formed with multiple layers.

Usually hand made from a foam core (or "blank") with a wooden stringer that is sanded to the desired shape then coated with clear fiberglass/resin. Modern boards have anywhere from one to five fins arranged at the tail end of the board. Fins vary in size, stiffness, and shape and can often be changed to suit the rider or conditions. Boards can also be made from epoxy, carbon fiber, and multi-layered foam. An elastic leash is usually attached to the rear to make retrieving the board easier. While a surfboard can withstand hundreds of pounds of force they are also fragile and break down when left in hot areas (such as cars) and direct sunlight.