noun <koo-tur gray-tur> A person, typically a woman of extra large pizza stature, who likes to have photos taken of herself cocking a leg up the side of a tree thus creating the illusion that she is grating her disgusting crotch on the bark of said tree.
That big old girl is one nasty Cooter Grater...she's going to kill that tree with her coot scrapings.
by MagicConch333 July 24, 2009