supercab noun2 •A front compartment on a truck that includes an extra seat behind the driver's seat.New station wagons and trucks with supercabs sped along Broadway when I walked back to the JMZ station. — 2010 •A truck that has a supercab.I have owned small ones, large ones, supercabs (my wife doesn't like those, too long), automatics, stick shifts, sun roofs, camper tops, flat beds, racks, four-wheel drives. — 2012 formssupercabs
