n. downhill skateboard, usually built very
heavy duty measuring 40-43" with wheel cutouts for large wheels. often mounted drop-through, with the truck
baseplate mounted on top of the board.
v. downhill skateboarding, where riders use
aerodynamic tucks and crouches to reach speeds as high as 65mph, drifting their boards at turns and footbraking, airbraking, or sliding to stop.
n. I just got a brand new
speedboard! I can't wait
to bomb some
hills!
v. Hey, do you want to speedboard today? I found a nice hill over by the school.