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An imitation of the sound that an antique cash register would make, often used when discussing financial matters or transactions, especially some form of profit. We've posted some excellent sales numbers this holiday season—ka-ching! A: "Dude, we could sell this stuff for, like, three times as much on the open market." B: "Ka-ching!"
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.