Free shake with any burger purchase (little moo only). Must be logged in to redeem online. Includes first flavor of shake. Extra charge for additional mix-ins. Cannot be combined with any other offer or discount. Excludes the classic combo, big deal & shake happy hour. Limit one coupon per account, per order. No copies. No cash value. Offer expires 3/31/26. In store or online code: BESTSHAKE
