A sex act in which four women do hand stands leaning up against the side of a house, and four men drop off the roof, weiners down, positioned to penetrate deeply into the asshole on contanct.
"Yo man, we about to try the quadruple vertipound on those bitches we met at the Jerzey shore"

"Awhh shit, you know dem jerzey hoes are always down to vertipound"

"Baboom Baboom!"
by BnR Inc. December 6, 2010
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