This term refers to the mobility scooters used primarily by the elderly and handicapped.
Larger stores have them available for shopper's convenience and while intended for those in need, they're occasionally used by able-bodied numbskull kids for entertainment.
The usage of "cooter" in this definition is derived from the word "coot," referring to an elderly person.
A less-than-genteel description of what a female dog does when it drags its netherquarters across the carpet due to some form of rectal discomfort. Also, used as a perjorative.
Goddamn, but Ol' Daisy's takin' a cooterscootch on my good rug.