This occurance is the prolapse of a rectum, the process in which the colon falls out the anus, as someone is eating out the butt. The prolasped colon, in turn 'suprises' the person giving the 'anal oral'.
by Jon the Dude January 21, 2006
Get the Cookie Monster Suprise mug.When you crush some cookies, stuff them in her vagina and ass then eat her out and all remnants of cookie are rubbed in between her titties until she likes it
Person 1: Damn dude I ran out of Oreos for my Cookie Monster surprise so I had to use chips ahoy
Person 2: Damn that sucks, we know the best Cookie Monster surprise is with Oreos
Person 2: Damn that sucks, we know the best Cookie Monster surprise is with Oreos
by PoosieBoi9000 May 12, 2016
Get the Cookie Monster Surprise mug.