redneck power wash Share definition Flag the act of peeing on a poop stain in a toilet to wash it away. you open the toilet and there is a poop stain on the wall and you use your penis to redneck power wash it clean redneck power wash by Andy Banas July 20, 2008 0 0 Get merch Get the redneck power wash mug. Buy Now — $32.95 See more merch