Provide a definition and examples of the phrase "kick ass."
kick ass {or (euphem[istically]} butt or tail} 1. Esp. Mil[itary] to enforce one's authority or otherwise enforce oneself mercilessly or pugnaciously; (also) (prob. the orig. sense) to subdue others by beatings; (hence) to play the bully; in phr. kick ass and take names to do so with great determination or success.—also used fig.—usu. considered vulgar.