All-day today (May 25), Sonic is selling its Shakes and Ice Cream Slushes at half-price.
All-day means you could start this morning with a Sonic Breakfast Burrito and a half-priced Ice Cream Slush, eat a Chili Cheese Coney with a half-priced shake for lunch, and for dinner eat a SuperSONIC Double Cheeseburger with another half-priced shake. I don’t recommend it, but you could do it.
The offer is valid at participating locations while supplies last. There is a limit of five per order, add-ins cost extra, and the offer cannot be combined with any other offers or discounts.