Funkaroo
While doing a "Dunkaroo", (when a man or woman dips their head into the icy waters of a keg tub (feet held up by two friends) and stays under water until they feels numb, at which time they must whip their head out of the tub to chug a beer), the participant farts on the two people holding up their legs.
We were all doing Dunkaroos last night and having a great time. Then Nick's turn was up and he did the nastiest Funkaroo, causing me and Casey to vomit into the keg tub.