Wiktionary
cash cows
n. (cash cow English)
Usage examples of "cash cows".
If the combination of these trends continues for much longer, even their cash cows will run out of milk.
As one of their cash cows, the cult didn't subject Socket to the most brutal of their brainwashing techniques, but that also means she wasn't part of their inner circle.
Buy major positions in bottled-water companies-and buy now before anyone else realizes that they're cash cows-to-be.
And the real cash cows are the alumni, not the tuition-paying chumps.