[Expired]Shake Shack Limited Time Additional Savings
- Shake Shack offers the B1G1 Free via coupon code THANKYOU .
- $5 off via coupon code SHACK2020
- Offer available at paricipating locations on App and on website.
- Deal ends 1/3.
- Offer is valid on the following Burgers or Chicken Sandwiches: