Definition of Floor plan rule
Rule by which an owner who has placed an automobile on the floor of a retail dealer’s showroom for sale is estopped to deny the title of an innocent purchaser from such dealer in the ordinary retail dealing, without knowledge of any conflicting claim. Mutual Finance Co. v. Municipal Emp. Union Local No. 1099, 110 Ohio App. 341, 165 N.E.2d 435.
That's the definition of Floor plan rule in Black's Law Dictionary 6th Edition. Courtesy of Cekhukum.com.