subs. (coaching).—A horse driven in shafts or next to the wheels: cf. LEADER. Also OFF-WHEELER = a horse driven on the right-hand side, i.e., the side on which a postillion never rides; NEAR-WHEELER = the horse on the left-hand side.
1862. THACKERAY, The Adventures of Philip, xiii. We saw the vehicle turn over altogether, one of the WHEELERS down with its rider, and the leaders kicking.
