Definitions by spiderlurk3r
Waterballoon
While having a hot docking session, you have the other guy pee inside your penis and then undock, you then quickly pinch your foreskin in order to make your penis look like a waterballoon.
While Marcel and I were docked, Marcel had to pee, and he wanted to undock, so i said hey foob just waterballoon me.
Waterballoon by spiderlurk3r August 4, 2009