What is Impossible Sit Up?
1.
A dirty trick you pull on a friend at a party, where you hold a towel over a friends face while he tries to do a sit up with you pulling down on it. While your friend tries to do this sit up you have another friend bend down over him and pull down his pants then you release the towel and your friends face goes into an asshole.
Kean: Aw man I was so drunk last night but I sobered up really fast when Darren and Matt got me to do an Impossible Sit Up.
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