Participating 7-Eleven convenience stores are giving away an estimated nine million free small Slurpee drinks today, on 7-11-18, during a special promotion.

The promotion begins at 11 a.m. and ends at 7 p.m. local time.

The uninitiated just call it “July 11” — but those in the know, who will happily sip the free, famous and beloved frozen concoction — call it “7-Eleven Day.”

“Free Slurpee Day may be the most anticipated day of the year for millions of 7‑Eleven customers and new customers alike,” said Raj Kapoor, a senior vice president for fresh food and proprietary beverages at the company, in a press release.

The organization introduced its iconic frozen, carbonated beverage in back 1966. A year later, the company’s advertising director coined the word Slurpee. Since then, more than 7.5 billion Slurpees in every fun and wacky flavor imaginable have been sold worldwide.

The company has some 66,000 locations worldwide, including 11,800 in the U.S. alone, Business Insider reports.

This year 2018 marks the 16th year of the Free Slurpee Day tradition on which the largest convenience chain in the world celebrates its birthday and other company milestones.

Folks on social media, of course, are lapping it up.

And one even has a clever suggestion for maximizing the yield on the free (small!) Slurpee.

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Michele Blood is a Flemington, New Jersey-based freelance writer and a regular contributor to LifeZette.

(photo credit, article image: Present Slurpees, CC BY 2.0, by Heidi De Vries)