1)A porn term meaning Double Vaginal, Double Anal. 4 men and 1 woman, 2 dicks in her vagina and 2 dicks in her anus.
2)Trey Parker and Matt Stones's (creators of South Park) Band.

Double Vaginal Double Anal. An act involving four men and one woman. Two dicks in the cunt, two dicks in the shitter. For the men, this act involves having your cock rub up against another man's cock. For women, it involves getting the best stuffing of your life.

Porn Term: Double Vaginal, Double Anal

Band formed by Matt Stone and Trey Parker of Southpark fame.

Short form for Double Vaginal Penetration and Double Anal Penetration.

This act has been deemed impossible to accomplish with four men and one woman. It can hypothetically be achieved by using sex toys such as a dildo. Hypothetically it can be achieved with 3 men and one sex toy.

(verb) Porno term- Double Vaginal Double Anal

Directon Versus Directon Analysis.
The comparison of maximal transcription units over multiple prokaryotic genomes in order to identify functionally related gene clusters due to repeated chromosomal proximity.