ka-ching /tʃəˈtʃɪŋ/verb 2exclamation 1noun 1 verb2 •(informal) To make the noise of a cash register or slot machine.The young guy bought the woman a refill of the same fine chardonnay that made her dad′s cash register cha-ching with pleasure. — 2011 •(informal) To make the noise of coins falling. exclamation1 •(informal, slang) Score!; wow!; said to celebrate something that has made or will make a large amount of money.Cha-ching! More profit, more jobs. — 1998 noun1 •(informal, slang) Money, cash.They find the best offerings on Travelocity. For very little cha-ching. — 2005
