lower part of a horse's thigh between the hock and the stifle
gaskin详细解释
gas.kin
n.(名词) The part of the hind leg of a horse or related animal between the stifle and the hock. 胚部:马或其他有关动物后肢膝关节和跗关节之间的部位 gaskins Obsolete Galligaskins. gaskins 【废语】 宽身裤
来源: Probably short for galligaskins 可能为 galligaskins的简写