When a group of rednecks take turns having sex with one girl without using condoms. Each redneck crosses his fingers that the child-to-be isn't his. Often the chosen girl happens to be one of the redneck's sisters.
Redneck #1 - Hey man get ready, we're gunna get drunk tonight and play a round of redneck roulette with Billy Joe's sister.
Redneck #2 - A ding dang doo!!