from The American Heritage® Dictionary of the English Language, 5th Edition.
- intransitive verb To buck, as a horse or mule does.
- intransitive verb To move in sudden jerks; lurch.
from The Century Dictionary.
- To jump in the manner of a bucking horse or mule. Same as
Sorry, no etymologies found.
The faculty of buckjumping is, I believe, almost confined to Australian horses, and seems to be bred in them -- perhaps the original rough breaking was responsible for the vice; but whatever be the cause it was then a fact that eight out of every ten horses could and did buckjump, and with many of them the vice was incurable.
Regulars at the Sunday afternoon social aid and pleasure club anniversary parades should recognize some of the characters that buckjump through Andrea Boll's hiply paced novella, The Parade Goes on Without You.