Join the SmashBurger SmashClub and enjoy a FREE Shake on your Birthday, with your purchase of an entree. Thanks, Hey It's Free! SmashBurger FREE Shake on Your Birthday was first posted on March 16, 2015 at 10:00 am. ©2008-14 Deal Seeking Mom™. All rights reserved. Use of this feed is for personal, non-commercial use only. [...]