whizbang (n.)youdaoicibaDictYouDict[whizbang 词源字典]
also whiz-bang, whizz-bang, 1915, originally a soldier's name for a type of German artillery shell in World War I, so called by the Allied troops in reference to its characteristic sound. From whizz + bang (v.).[whizbang etymology, whizbang origin, 英语词源]