The 'This Is Something That Died Out Around 2021' meme is a nostalgic social media trope used to identify cultural phenomena that were intensely popular during the COVID-19 pandemic but lost relevance almost immediately after. It captures the unique absurdity of the lockdown era, referencing everything from the 'Tiger King' craze and 'Among Us' lobbies to bread-baking obsessions and the short-lived dominance of the Clubhouse app. Emerging as a way for Gen Z and Millennials to reflect on the collective fever dream of 2020 and 2021, the meme serves as a digital time capsule. It is widely used to spark conversations about how quickly internet culture moves and how specific environmental circumstances can make even the strangest trends feel like a global necessity.