Throughout the day Wednesday, customers at all U.S. locations can get a free 7.11-ounce Slurpee in a special cup commemorating the chain’s humble beginnings.
There is no information at 7-Eleven's website about getting Free Slurpee. However, major newspapers and bloggers report about it.
Here is what Bostonist.com writes.
Free Squishee Today. Yes. Squishee
"It's July 11, 2007. In popular date notation that's 7/11. Woah, 7/11 – like the home of the tasty frozen soda treat the Slurpee. Today might actually hit the forcast predictions for temperature, but already it feels real thick with humidity outside. On days like these we can think of few things better than a Slurpee. A free Slurpee would certainly be better. Today your local 7-11 delivers, head over and grab a freebie, the giveaway size is smaller than anything they normally offer (and in most stores is only available while the special cups last)."
