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It's National Slider Day at White Castle. How to get a free burger
Want a free burger? Today's the day to head to White Castle. You can get a free Original Slider at White Castle on May 15 to ...
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White Castle To Give Away Free Original Sliders in Celebration of ‘National Slider Day’
White Castle is celebrating National Slider Day by honoring customers with free sandwiches and money-saving deals. According ...
White Castle is Giving Away Free Sliders for National Slider Day—Here's How to Get One
Related: RITZ Just Released a New Limited-Edition Flavor and It's Giving Real Summer Vibes ...