bucker

Buck-jumper

n. a horse givento bucking or buck-jumping.

1853. H. Berkeley Jones, `Adventures in Australia in 1852 and1853,' [Footnote] p. 143:

«A `bucker' is a vicious horse, to be found only in Australia.»

1884. `Harper's Magazine,' July, No. 301, p. 1 (`O.E.D.'):

«If we should . . . select a `bucker,' the probabilities arethat we will come to grief.»

1893. Haddon Chambers, `Thumbnail Sketches of Australian Life,'p. 64:

«No buck jumper could shake him off.»

1893. Ibid. p. 187:

«`Were you ever on a buck-jumper?' I was asked by a friend,shortly after my return from Australia.»