n. A line pertaining or attached to the side of something; specifically, in the plural, lines by which the fore and hind feet on the same side of a horse or other animal are tied to prevent straying or escape.n. A line or course of business aside from or additional to one's regular occupation.To hobble, as a horse.n. In foot-ball, hockey, and similar games, a line defining the limit of play on the side of the field, and outside of which the ball is out of bounds.