The nickname for "double vaginal/double anal", a seemingly impossible sexual act involving a woman and four men. I first heard this ridiculous acronym in the movie Orgasmo, and thought it was something those cooky creators of South Park had come up with. Since then I learned it was something actually performed in real porns, when I walked in on one of Louie's jerk-off sessions and saw the pile of contorted bodies on the television screen.