The 'Until Tomorrow' challenge first went viral on Instagram in early 2020 as a way for users to pass the time during global lockdowns. The premise is simple: a user posts a goofy, unflattering, or embarrassing photo of themselves with the cryptic caption 'Until tomorrow.' Anyone who likes the post receives a direct message informing them that they have 'fallen for the trap' and must post their own embarrassing photo for 24 hours. The meme relies on a mix of self-deprecating humor and a chain-letter style mechanism, turning social media into a game of visual dares that celebrates authenticity and lighthearted fun over perfectly curated feeds.