ka-chingEnglishOxford New American Dictionaryka-ching /kəˈCHiNG , kəˈtʃɪŋ / (also ker-ching /kə(r)ˈCHiNG/) ▸ noun used to represent the sound of a cash register, especially with reference to making money: they likely have assets beyond the ka-ching of the cash register. – ORIGIN imitative; compare with ching.