Sonic is the undisputed fast food champion of soft drink customizations. The drive-in has an endless menu of syrups, toppings, and several ways to make drinks "dirty," not to mention its wide array of ...
Drinks get weird at Sonic—and we love it. The drive-in is always leveling up its soda customization menu, from the dirty soda trend to a secret drink name that, well, we'd rather not say out loud.