What happens in an ollie imposible is the board turns 360 vertically. There are two ways to do it. One is where it wraps around your back foot, and two is where you have to suck your feet up to your chin. This is how you do it: Your feet should be in kickflip position, except your front foot should barely be on the board. The toe of your back foot should be "grasping" the heel side of the board. Now, pop the board as hard as you possibly can and make a scooping motion to the front of the board with your back foot. While your doing that, move your front foot to the side so it wouldn't be in the way, but don't make the board flip. Now jump as high as you can. Your board should now be wrapping around your back foot. Once it finishes wrapping around your foot, smack it down and land. And all that has to happen in less then a second. The second way is exactly the same except that the board doesn't wrap around your foot. You have to do exactly the same thing except that you have to suck your feet up as high as you can. One thing about this trick though. This is another one of those tricks where it's extremely easy to break your balls. So either don't do it, be really careful, or wear the only peice of equipment your really need: a cup.

Trick contributed by: www.skateboarduk.com