Home C words to describe someone Crackerjack C words to describe someone Crackerjack By MrDescribe 948 0 Facebook Twitter Google+ Pinterest WhatsApp Crackerjack- Definition: crack·er·jack [krák?r jàk] adjective excellent: outstanding in quality or ability (dated informal) [Late 19th century. < cracker "excellent" + jack1 "man"] -crack·er·jack, noun