A Wakeboarding or wakeskating spins is performed when the rider launches themselves in the air, rotates and lands the board after rotating at least 180 degrees. Though they are not as spectacular as inverts from a spectator's point of view, they can be just as, if not more difficult to perform.
180: A 180 is spin where the rider does a 180 degree rotation while in the air.
360: A 360 is spin where the rider does a 360 degree rotation while in the air.
540: A 540 is spin where the rider does a 540 degree rotation while in the air.
720: A 720 is spin where the rider does a 720 degree rotation while in the air. Cory Pickos was doing handle pass 720's off the wake in the early to mid 90's. Scott Byerly was the first notable wakeboarder to start doing 720's.
900: A 900 is spin where the rider does a 900 degree rotation while in the air. First landed by Darin Shapiro. Shawn Watson was the first to stick an off-axis 900 both in freeriding and in competition. Watson was also the first to stick an off-axis 900 off the wake. Steve Edwards was the first person to stick an off-axis 900 off the wake in competition.
1080: A 1080 is a spin where the rider does a 1080 degree rotation while in the air. Parks Bonifay was the first person to stick a 1080. Mark Kenney also reportedly landed a few 1080s.
Backside: A spin where the rider rotates with the back of their body towards the boat first. Many times mistakenly referred to as blindside spins. Collin Wright was the first rider to start doing major backside spins including backside 540s off the wake and backside 720s.
Baller: This is a term used for when a rider does the handle pass of their spin by passing the handle between their legs. Parks and Shane Bonifay invented it.
Flatline Spin: A spin where the rider goes over the rope instead of passing the handle.
Frontside: A spin where the rider rotates with the front of their body towards the boat first.
Off-Axis: When a rider does a spin but goes off the vertical axis so the board usually gets up to shoulder level or above. Invented by Marshall Harrington. Also referred to as "Monkey" or "Corked" spins. Other notable contributors to off-axis spins are Corey Kraut and Shawn Watson.
Osmosis: When the rider performs a spin by tossing the handle from one hand to the same hand again, bypassing the other hand - Invented by Shaun Murray.
Rewind: A spin where the rider does a shifty one way, then back the other, then spins back in the direction of their initial shifty.
Shifty: Board is shifted 90 degrees in one direction and then shifted back in the opposite direction. Gregg Necrason was the first rider to land a shifty 540.
To Blind: The rider lands with the rope wrapped around their back instead of passing the handle.
Wrapped: When the rider has the rope wrapped around their back when riding they are are going to perform a wrapped trick. It allows a rider to spin without doing a handle pass. It also allows the rider to perform unique grabs that usually cannot be done when passing the handle. A big innovation in wrapped tricks came when Randy Harris invented the double wakeboard handle - the Vandall Handle.