Definitions by Notorious R.E.D. and S Bizzle

ass spelunking 

A prank played on someone who is sleeping. When you pull down your pants stick their nose in your crack and then fart. May cause nosebleeds and/or loss of consciousness.

John was the first one to fall asleep, so Manuel sent him ass spelunking. Man was he pissed.

ass spelunking by Notorious R.E.D. and S Bizzle December 9, 2008