Free Slurpee Day - and where to go for spiked treats Get 7.11 ounces of free Slurpee - such as this Coca-Cola/Wild Cherry mix - at 7-Eleven until 7 p.m. Wednesday. (Fritz Hahn/The Washington Post) Today is 7/11/2012, which means it's 7-Eleven Day, time for free slurpees at your local 7-Eleven until 7 p.m. When we went to check it out, the closest 7-Eleven to the Post at 14th Street and Rhode Island Avenue NW had no signs about Free Slurpee Day - just a forlorn stack of mini cups next to the Slurpee machine. Speaking of icy cold refreshment, adult versions of frozen treats are all the rage this year. Jack Rose, Marvin, PS 7"s and Bayou Bakery are among the restaurants and bars serving snow cones and sno balls spiked with booze. Read more about these delicious warm-weather desserts in our Summer Bucket List. And we can't forget our favorite frozen drink of all: The "Slushitos" at Estadio. Slurpee-style cocktails made with rum, coconut, lemongrass and lime? Sounds like the perfect way to fight the heat.