Also found in: Medical.


intr.v. buck·jumped, buck·jump·ing, buck·jumps
1. To buck, as a horse or mule does.
2. To move in sudden jerks; lurch.

buck′jump·er n.


(Horse Training, Riding & Manège) Austral a competitive event for buckjumpers in a rodeo
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I won medals at buckjumping in Australia, and I held more than several swimming records from the quarter of a mile up.
After they married, they moved to a house at Neutral Bay with a backyard large enough to hold their new horse, my father having sold Rocky Ned and his other buckjumping horses and bought a sensible Clydesdale, Dobbin.