"Trailer" means every vehicle designed or used for carrying persons or property wholly on its own structure and for being drawn by a motor vehicle, including any such vehicle when formed by or operated as a combination of a semitrailer and a vehicle of the dolly type, such as that commonly known as a trailer dolly, a vehicle used to transport agricultural produce or agricultural production materials between a local place of storage or supply and the farm when drawn or towed on a street or highway at a speed greater than twenty-five miles per hour, and a vehicle designed and used exclusively to transport a boat between a place of storage and a marina, or in and around a marina, when drawn or towed on a street or highway for a distance of more than ten miles or at a speed of more than twenty-five miles per hour.
(ORC 4511.01 (M))