A pop shuvit 180 or "sex change pop shuvit" Is when the skater ollies, and attempts to pop shuvit which is where the skater pushes the board in a 180 degree spin, as he does this he turns his body in a 180 spin the other direction.
Skater: Dude that guy can pop shuvit sex change
Skater2: No way dude for real? Thats ill, Hes becoming better and better.
TheSkater: Dude I popped my pop shuvit sex change so high.