Free Slurpee Day is celebrated annually on July 11, primarily in the United States, inviting people to enjoy a complimentary small Slurpee from 7-Eleven. This event allows customers to beat the summer heat with a variety of icy flavors, encouraging sharing with friends and creating memorable experiences. The tradition coincides with 7-Eleven's birthday and often features promotional tie-ins with popular brands like Coca-Cola, Fanta, and Warheads, which provide flavors for Slurpee machines. Other convenience stores, such as Circle K, may also run similar promotions to attract customers. Participants are encouraged to share their experiences on social media platforms using hashtags like #FreeSlurpeeDay. The Slurpee itself, a frozen carbonated drink, was invented by Omar Knedlik, who developed the concept in the late 1950s and later licensed it to 7-Eleven.