Munchausen By Internet (MBI) refers to a digital-age manifestation of factitious disorder, where individuals feign physical or mental illness in online communities to gain sympathy, support, and validation. Coined by psychiatrist Marc Feldman in 2000, the term transitioned from a clinical observation into a widespread internet trope used to call out suspicious or performative 'main character' behavior on platforms like TikTok, Reddit, and Tumblr. Memes surrounding MBI often satirize the lifecycle of a fake claim—from the initial 'diagnosis' post to the inevitable 'call-out' by internet sleuths who spot inconsistencies in the person's story. This meme subculture serves as a skeptical reaction to the performative nature of social media, highlighting the tension between genuine digital advocacy and deceptive attention-seeking behavior.