The 'Lost Episodes' meme stems from the early internet era of creepypastas, where users would write fictional, horror-themed stories about 'lost' or 'banned' episodes of popular children's shows like SpongeBob SquarePants or Mickey Mouse. These stories usually involved hyper-realistic blood, unsettling audio, and psychological horror. Over time, the trope became a meme as the community began to parody the predictable and often edgy nature of these stories. Today, the template is used to satirize dark internet theories, evoke nostalgia for early web horror, or highlight the disturbing feeling of finding something that wasn't meant to be seen.