Make a killing.
Make a killing.
To "make a killing" involves earning a significant amount of money in a very short period of time. This idiom is often used in contexts like business deals or investment opportunities where the financial return is exceptional and exceeds normal expectations.
He made a killing on the stock market last year.
He earned a lot of money from his investments in the stock market last year.
She’s hoping to make a killing with her new invention.
She hopes her new invention will bring her a substantial profit.
Some investors make a killing by timing the market perfectly.
Some investors earn a lot of money by perfectly timing their market investments.