The Kentucky washboard is the act of sitting on a sexual partners abs and taking a soggy, chunky dump on them and rubbing it in with you dirty ass cheeks.
"Son last night I gave your Mom a Kentucky washboard,and shes still picking out pieces of Tuesday nights pot roast out of her bellybutton"
by Effen Shine Box!!!! August 17, 2009
Get the Kentucky Washboardmug.