stiff-arm（v.） 英 [ˈstɪfˌɑ:m] 美 [ˈstɪfˌɑrm] "fend or push off with a stiff arm," by 1927, in U.S. football, from stiff (adj.) + arm (n.1). Related: Stiff-armed; stiff-arming.该词起源时间：1927年
