The Nerds candy Slushes feature the typical mix of flavored-syrup and ice but throws in a blend of Nerds and rainbow candies to sweeten the deal. Each slush features its own unique syrup rather than a blend of existing syrups.
Available flavors include (new flavors in bold): Nerds Blue Raspberry, Nerds Grape, Banana Taffy, Cotton Candy, Jelly Bean, Sour Blue Raspberry, Sour Grape, Sour Green Apple, Atomic Lemon, Super Peach Ring, Strawberry Island Breeze, Pineapple Island Breeze, Miami Sunrise, Polynesian Punch, Blue Coconut, Powerade, Pineapple, Strawberry, Lemonberry, Lemon, Lime, Cherry, Orange, Green Apple, Watermelon, Grape, and Cranberry.
There's also an option to add ice cream to your Slush.
Slushes are half-off during Sonic's daily Happy Hour, which runs from 2 to 4 pm at participating locations.