out of control with anger or excitement; wild or frenzied 狂怒的;激动得控制不住的;疯狂似的;狂暴的 a man went berserk with an arsenal of guns. 一名男子发疯似的用各种枪支乱射。
语源
early 19th cent. (originally as a noun denoting a wild Norse warrior who fought with frenzy): from Old Norse berserkr (noun), probably from birn-, bjorn (see bear) + serkr 'coat', but also possibly from berr 'bare' (i.e. without armour)