Wiktionary
money machine
n. A very profitable scheme or institution, sometimes (context derogatory English) one that disregards aesthetic or spiritual concerns in favour of making money.
Wikipedia
Money machine
Money machine may refer to:
- an automatic teller machine, used for withdrawing money from a bank account, or
- a money booth, used for entertainment.
Usage examples of "money machine".
The old space jock had not exaggerated when he talked about the money machine going full bore.