It's National Cheeseburger Dayย -- here's what you need to know.

Yes, September 18 is National Cheeseburger Day -- there are deals aplenty, by the way -- so USA Today decided to jump in on the fun with these delicious facts about cheeseburgers.

What, no mention of how many napkins you'll need when scarfing down a typical cheeseburger? We feel a little gypped.

Twitter was also celebrating this most American of foods. The social network was loaded with comments the way a good cheeseburger is loaded with the works, thanks to the trending hashtag #NationalCheeseburgerDay.

So, do yourself a favor: hunker down with these tweets and then head out for a mouth-watering cheeseburger. You know you want one.