at stampedes, rodeos, etc., a horse specially given to bucking and, for this reason, used as a mount in bronco-riding competitions.
See also: buck-jumper
- 1919  Miss Tillie Baldwin, World's Champion Lady Bronk [sic] Rider, will ride bucking horses, and also attempt to bulldog a steer from a running horse.
- 1962  A top bucking horse is valued from $1000 to $1500 and works, in periods of ten seconds each, for four or five minutes each year.