dude
view this replay
i do a cork in the second jump
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dude
watch this replay the cork is in the second jump
that's not a cork
ay
here's a cork. the gist of a cork is using one leg to get your vertical spin, while the other gets the horizontal spin. the leg on the floor makes you flip over, backwards or to the side, whereas the other gets you the spin
the angle of a cork can be quite different
essentially a 360 backflip off of one leg, swinging the other leg through
First of all, Alpha, that is not a corkscrew.
A corkscrew is basically a 360° turn in both directions, horizontal aswell as vertical.
Its when you are doing a backflip while rotating to the left or to the right.
I can't really state examples right now, since I'm not on my main pc where all the replays are, so I can't really show you the science behind a cork or how to do it. But there are enough replays and cork tutorials (beginners who tried to do a cork for the first time) out there that can show you how to do it.
The corkscrew/cork and its example/description is on this page: http://forum.toribash.com/showthread.php?t=450187
It can also help you if you don't know any other tricks or things like that.