eat high on the hog

To prosper or otherwise live very well. It refers to the rich being able to afford the choicest cut of meat, which, from a pig, is higher up on the animal. They've been eating high on the hog ever since David won the lottery. It must be a shock for them having to count their pennies like this—they're used to eating high on the hog, after all. Man, before the stock market crash, we could eat high on the hog, no problem.