: No, I never heard of this before. Just one of the many
: holes in your knowledge you suffer when all your
: friends are girls, I guess. :) So it's a popular
: sport, then?
: --SiliconDream
Among certain members of the community, yeah. It just cuts off the oxygen to one's brain long enough for you to black out, then the person behind you (whom you should have IMPLICIT trust in) lets you down to the floor, where you start breathing again, and wake up. But there's about thirty seconds when you're out (your mileage may vary) when some people say they saw really wierd images in flashes. Sometimes it's just wierd short dreams. And sometimes it's nothing at all.
It can also be done by applying pressure to the sides of the neck. It generally doesn't give ya hangovers until like the tenth time, tho.
-Joy