okay, i dont really want to get into a 'name the trick' contest, but it was definitely a cork. his body is clearly uphill from his skis. nice job dude.
no first guys right its a bio or a flatspin. like he said a cork is going off axis backwards but never can your feet be above your head. bio is the same but throw forward. and a rodeo is a cork but your feet DO go over your head but you never go completly vertical and misty is the same but thrown forward. flatspin is when you spin or your side like he did. and a d-spin is hard to explain you could call that either a flatspin or a bio calling it cork makes you instantly dumb. pretty sweet by the way.