Collins Concise English Dictionary © HarperCollins Publishers::
kerching, kaching /kəˈtʃɪŋ/ interj slang an exclamation used to imitate the sound of the opening or closing of a cash register an exclamation indicating the acquisition of substantial earnings or profits Etymology: 20th Century: imitative
'kerching' also found in these entries (note: many are not synonyms or translations):