A group of people lay side by side covered in body oil. They must lay on their stomach and be completely nude. The speediest friend you have must take a speedy running start and dive across their bodies with his/her tongue out. Hopefully they have a large enough tongue to get a lick of every butt. At the end of the slide, a large man must have his butthole raised up just enough so that your face lands in a stinky pile of garbage.
The first eight buttholes of this Human Slip and Slide were fine, but that huge guy at the end made my whole face stink like someone dragged their stinky nutsack across it.
by Sally Crapbasket July 09, 2009
Wearing a pair of shorts that are loose and repeatedly showing your nuts to other people when sitting down. Usually on a bench of some sort. It helps if you make rapid hand movements by the area of vision.
by Sally Crapbasket July 08, 2009
Searching Urban Dictionary for the most disgusting and foul sexual maneuvers, and beating off to them.
Psychiatrist: what did you do last night?
Me: I spent like 5 hours performing an Urban beat off.
Psychiatrist: again? What definition this time?
Me: The Boston Pancake got me so horny that I beat my little dick around til it was black and blue.
Me: I spent like 5 hours performing an Urban beat off.
Psychiatrist: again? What definition this time?
Me: The Boston Pancake got me so horny that I beat my little dick around til it was black and blue.
by Sally Crapbasket July 09, 2009