7-Eleven Freebie: FREE Slurpee Coupon (Text Offer)March 30, 2013 By Kelli This post may contain affiliate links or sponsored content, read our Disclosure Policy.7-Eleven Freebie: FREE Slurpee Coupon (Text Offer)Alright! Another 7-Eleven freebie! Text Slurp7 to 711711 on your cell phone and you’ll score a coupon good for a FREE medium Slurpee at 7-Eleven! Just show your reply text in-stores to claim your FREE drink. Expires April 30, 2013.Don’t forget you can score a FREE MiO Liquid Water Enhancer on April 23 at 7-Eleven. Go here for details.