cash cow
US /kæʃ kaʊ/
UK /kæʃ kaʊ/

1.
nakit ineği, para basan makine
a product or service that generates a large amount of money for a company, often with little effort or investment once established
:
•
Their flagship software has been a real cash cow for years.
Amiral gemisi yazılımları yıllardır gerçek bir nakit ineği oldu.
•
The old product line might not be innovative, but it's still a reliable cash cow.
Eski ürün hattı yenilikçi olmayabilir, ancak hala güvenilir bir nakit ineği.