Free smash or 1/3 lb smashburger at Smashburger w/ entree purchase
www.smashburger.com/email/fathersday/show_coupon.php?first=YOUR&last=NAME -copy paste the link and replace YOUR with your first name and NAME with your last name
Free smashburger w/ entree purchase
www.smashburger.com/email/store100/show_coupon.php?first=FirstName&last=LastName -copy paste the link and replace firstname and lastname with your name