Double Roller
A bowel movement that requires more than one roll of toilet paper.
Last time I ate that many chili dogs I had a double roller.
Double Quad-Roller Bumpin' Grind
When two quadruple amputees, strapped to skateboards have sex.
The Annual Amputee Orgy/Tent Revival ended in a Double Quad-Roller Bumpin' Grind under the pulpit.