Noun
A very profitable scheme or institution, sometimes (derogatory) one that disregards aesthetic or spiritual concerns in favour of making money.
(New Zealand) An automated teller machine.
Source: en.wiktionary.orgAn actress is not a machine, but they treat you like a machine. A money machine. Marilyn Monroe
Television was supposed to be a national park. Instead it has become a money machine. It's a commodity now, just like pork bellies. Fred W. Friendly