a.1.(Zool.) Having the tail set low and buttocks that fall away sharply from the croup; - said of certain horses.
References in classic literature ?
He did not note the money-lender on his goose-rumped pony, hastening along to collect the cruel interest; or the long-shouting, deep-voiced little mob -still in military formation - of native soldiers on leave, rejoicing to be rid of their breeches and puttees, and saying the most outrageous things to the most respectable women in sight.