To build a horse's speed and stamina through work; lifting a jockey onto a horse.
to help a rider up on a horse
to help a jockey mount his horse.
Method of mounting in which an assistant stands behind the rider and supports the lower part of his left leg and giving a boost as necessary as the rider springs up off the ground.
Trainer helps jockey to mount the horse by holding a hand under the jockey's knee and giving him a boost.
1) To help a jockey mount a horse. 2) A jockey having a mount.