Clue: Cash register noise
Answer: KACHING
We have the answer here for March 29, 2025.

Explanation:
A cash register produces a distinctive sound when a sale is completed, typically associated with the opening of the cash drawer and the ringing of a bell. This noise has become a cultural symbol for financial transactions and is often used in media to represent sales, commerce, or financial success.
The answer to the New York Times The Mini crossword clue “Cash register noise” is “KACHING.” This onomatopoeic expression mimics the sound of money being processed in a cash register and is frequently used in a figurative sense to indicate financial gain or a successful transaction.
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