What Can You Get?
Free shake on or within 7 days of your birthday
🎉 Who is eligible?
- No listed limitations.
📅 When can I redeem?
- Only valid on birthday.
📍 Where is it valid?
- Check local stores to see if offer applies.
How to Get This Deal
- - Sign up for Smashburger SmashRewards; a reward for a free shake (any flavor) will be added to your account on your birthday, valid that day and 6 days after
- - Visit a participating Smashburger location
- - Present your birthday to the cashier to receive your offer
About Smashburger
A fast-casual restaurant chain specializing in hamburgers and American comfort food.