Well worked on, and to put it into some sort of perspective, its what you would call some Nice, lean, sexy, clean, buff, ABS!! If you uneed some proof that this is even possible, check out Usher! He got his washboard abs practically trademarked! ya dig?
A word that means the female chest is flat or smallishly pointed like that of a washboard. Commenly used to insults in the anime world. Other then that, it is used to washing clothes upon.
Anime Guy: Why would I like you? You have a washboard for a chest.
Anime Girl: *Smack*
Anime Guy: *Flies toward the sun*
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"