Wisconsin Cow Pie Share definition Flag The act of deficating on a person's chest then squishing it with your buttocks. -Have you ever gotten a Wisconsin Cow Pie? -No? -Then you've never been in Milwaukee. Wisconsin Cow Pie by Bill Cosby 4 Life January 18, 2010 0 0 Get merch Get the Wisconsin Cow Pie mug. Buy Now — $32.95 See more merch