dial. & U.S. [? corruption of butt, associated with BUCK sb.1] trans. To butt.
1750. Ellis, Country Housew., 174, in Britten, Old Country Wds. (E. D. S.). Many of these kickers are very apt and prone to buck other cows for which reasons, all cows should have wooden tips fastened to the end of their horns.
1834. M. Scott, Cruise Midge (1863), 170. The pet lamb was making believe to buck him with its head.
184860. in Bartlett.