What is a Restaurant Check?

If you've ever been to a restaurant, you know that at the end of your meal, you'll get a bill. This bill is the check for your meal. In the US, when you pay your bill, you usually give the server your credit card. The server then swipes the card and gives you a receipt to sign. But what is a restaurant check? A restaurant check is a printed receipt that a server gives to a customer when the customer pays for their meal.