Free Small Famous Slush at Sonic, in Fullerton. No Purchase Necessary.

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Sonic Drive-In

  • 441 N. Placentia Avenue, Fullerton, CA, 92831


Summer is over, so it’s time to get slushed. Not during Rush Week or some dorm party, we mean at Sonic in Fullerton. To celebrate the start of the new semester, they’re offering a FREE Small Famous Slush with no strings attached. So many insanely great flavors to choose from and at the right price (FREE!). Pair it with a juicy burger, specialty dog or tasty chicken fingers. At SONIC, you need to move at the speed of sound. Because, if you don’t, the deal will – expires on September 14, 2018.

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