while sliding a rail the skier jumps and turns 180 degrees so they end up sliding the rail in the opposite direction. Also called "swap" or "sex change". Can be done "frontside" or "backside/blindside"
Big spin is a 360 shove it with a 180 body rotation in the same direction as the shove it.
"The world would be a better place if most of ns had been aborted." - k-rob
"It was probably when you jumped on her desk with your erect penis displayed proudly and in an act of male dominance started jizzing in a circle around her while screaming "I claim thee." That's where you went wrong*" - Aidan-G