What is "canterbury gallop"

Canterbury \Can"ter*bur*y\ (k[a^]n"t[~e]r*b[e^]r*r[y^]), prop. n.

1. A city in England, giving its name various articles. It is the seat of the Archbishop of Canterbury (primate of all England), and contains the shrine of Thomas [`a] Becket, to which pilgrimages were formerly made.

2. A stand with divisions in it for holding music, loose papers, etc.

   Canterbury ball (Bot.), a species of Campanula of several varieties, cultivated for its handsome bell-shaped flowers.

   Canterbury gallop, a gentle gallop such as was used by pilgrims riding to Canterbury; a canter.

   Canterbury tale, one of the tales which Chaucer puts into the mouths of certain pilgrims to Canterbury. Hence, any tale told by travelers to pass away the time.

Aubin \Au"bin\, n. [F.] A broken gait of a horse, between an amble and a gallop; -- commonly called a Canterbury gallop.