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.
Kitsap County is a county in Washington near Seattle. Silverdale is one of the cities in Kitsap county where large beastly women wander around the mall and other strip malls that have stores with size 16 and above selections. These women are also known as KitSilverbacks. Large and hairy, these beasts are known to waddle through parking lots toward food, sales and usually have a cloud of kids floating near its calves. See also bremelo.
I went to Ross today to try to find a fondue pot but a KitSilverback was waddling in front of me and taking up the whole row. I got tired of hearing her wheezing so I left.