Buy 1 Burger, Get 1 FREE!Online coupon Code : TENNBOGO IN-RESTAURANT: 218723. Valid only at the BRENTWOOD Location. Buy one burger, get one free of equal or lesser value. Not valid on kids meals, salad or hot dog. Cannot be combined with any other discounts or Mooyah Rewards App Rewards. Limit one coupon per party, per visit. No cash value. 2021 Mooyah Francising, LLC Expires 4/25/21.