Deal has ended, view more Shake Shack deals by clicking here.
Update 12/31/20: New code is NEWYEAR.
- Shake Shack is offering buy one, get one free up to $7.98 when you use promo code THANKYOU
The Fine Print
- Valid until 1/3/2021
Might be useful for those that need to use up Gold dining credits.
Hat tip to MyDearPanda