May 15th is National Slider Day...yes, apparently that's a real thing. Which is why White Castle is offering a free slider and small drink today only.

I know what I will be doing for lunch today! Of course, I will need to buy a couple more sliders to fill me up, but it's worth it just to get a free one.

To take advantage of this offer, all you have to do is show them a coupon from their app or website, you'll get a free slider and a drink. You can see the coupon by clicking on the link in the Tweet above, or you can simply click here.