coin it (in)

slang To earn a lot of money, usually quickly. Primarily heard in UK, Australia. That company has such a great product that it's no surprise they're coining it in. We'll coin it if we can manage to secure a trading partner in China. I hear Sarah has coined it in with sales from her latest novel.

ˈcoin it (in)

coin ˈmoney

(informal) (normally used in progressive tenses) earn a lot of money: They must be really coining it at that cafe on the corner. You can hardly get a seat at any time of day.