I recently stumbled upon some exciting news for all my fellow Sonic fans out there. On September 6, 2017, Sonic is offering a special deal of 99-cent large drinks, including slushes! Can you believe it? I couldn’t contain my excitement when I found out about this incredible offer. It’s the perfect opportunity to quench your thirst and enjoy some delicious and refreshing beverages. Indulge in Sonic’s Irresistible Drinks Sonic offers a wide range of beverage options that are bound to tickle your taste buds and provide a burst of flavor.