a. Literally, that kills; having power to kill; fatal; in a colloquial sense, conquering; captivating; irresistible. -- Kill"ing*ly, adv. [1913 Webster]
Those eyes are made so killing. Pope. [1913 Webster]
Nothing could be more killingly spoken. Milton. [1913 Webster]
[かえりうち, kaeriuchi](n) (1) killing a would-be avenger; (2) having the tables turned on someone (e.g. by a challenger); being beaten at one's own game#18610[Add to Longdo]