At first glance, TikTok videos of milky swirls that plume into fizzy neon blue liquid might be mistaken for those dreamy satellite images from space. Instead of a galactic vision, however, the billows can be found doing their eddies in plastic cups filled with pebble ice; sometimes, they’re held by stars like Olivia Rodrigo. Called “dirty soda,” the carbonated drinks have become an all-out craze on the social media platform. Imagine a cross between a Shirley Temple and an egg […]