Iceplant
A boneless to fakie.
Illusion Flip
Many people confuse this trick with a hardflip. An illusion flip is a type of hardflip performed vertically through the riders legs.
Impossible
Flipping the board a complete flip around the back foot. Invented by Rodney Mullen.
Indy
A grab trick where the back hand grabs the toeside edge of the board about half way along.
Invert
the invert is a handplant trick with many variations. In the basic invert, the board is grabbed mute and the back hand is placed on the coping to allow the skater to go completely upside down before re-entering the ramp.
Inward Heelflip
an inward heelflip is a varial heelflip where the varial is popped backside instead of frontside.
Inward Kickflip
A varial kickflip where the varial is popped frontside instead of backside.