Have any of you guys tried sit-ups where another guy tries to hold you downs with a towel (usually around the eyes or forehead) to provide resistance. This is a pretty awesome ab strengthener. http://www.uniquepeek.com/fusion_pages/index.php?page_id=245
a google search leads me to beleive this is some sort of attempt to put my nose in somebody's asshole. why did I google it? your link don't work. here's one that does though: http://www.dumpalink.com/media/1132655285/Atomic_Sit-Up_ is it the same video?
it's a very old but very amazing prank. if you can pull it off you should do so at once. granted i haven't tried to pull it off in over 15 years but i am still laughing about the last time that me and my friends did get someone to fall for it. it can also be started by saying "there's a scientific theory that you can't do a sit up with your eyes closed.".
I have no need for this because I never have the urge to stick my nose in any man's asshole nor do I want any man to put his nose in my asshole.