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1.
A variation of the DVDA (double-vaginal double-anal) position. The woman, while being double-penetrated in both the anus and vagina, receives two penis' in the mouth as well. This brings the final penis count to 6.
Yo, Rob! Get over here and stick your meat in this gal's pie-hole and let's get us a death valley clown car goin'!
by DepravedDinosaurKing April 10, 2011
 
2.
The act of have 2 Wieners in every hole used for sex at the same time.
Man, can you believe that whore at that party took the Death Valley Clown Car?! She took it like a champ!
by Unholy Warheart April 26, 2011