The person next to Maghielse told him that it was a thing, specifically a British thing. Essentially, it’s a Shandy—a mixture of beer and lemonade—albeit an odd one. In England, lemonade is generally a fizzy drink, so Sprite is one of the closest approximations someone is likely to find at an American bar.
The post was retweeted almost 700 times, commented on by many incredulous drinkers and quickly spread around the internet.
Despite the fact that Guinness cocktails like the Black Velvet (Guinness and Champagne) exist, there was disbelief that Guinness and Sprite “is a thing.” But mentions of the beer and soda combination have appeared for years. A reddit thread from 2014 in /r/mildlyinteresting featured a picture of Guinness mixed with Sprite and one of the commenters noted that this was a “house drink at my local pub.”
Eyeglass Press, publishers of Guinness Down Under, go back even further, finding the Guinness Shandy cited in a 1985 book called Book of Guinness Advertising by Brian Sibley who claimed that the drink was popularized by the New Zealand All Blacks rugby team. And while Guinness itself couldn’t confirm that the All Blacks were the reason for the Shandy’s existence, it could confirm that it was, in fact, a thing.
You may now return to your regularly scheduled tweeting.