mule
n.— «One bill that made it out of the House and is headed to the Senate is the licensing of utility vehicles commonly called mules or gators. This will allow the vehicles, slightly larger than a golf cart but usually with an enclosed seating arrangement, to operate legally on public roadways.» —“Fire district boundary bill heads to House floor” by Connie Burcham Lovell Chronicle (Wyoming) Jan. 19, 2007. (source: Double-Tongued Dictionary)