Slender Man is a fictional supernatural character that originated from a 2009 Something Awful forum post by user Victor Surge. Depicted as a tall, faceless figure in a black suit, Slender Man is known for stalking, abducting, and traumatizing children. The character became a viral internet meme and inspired numerous works of fiction, including video games, web series, and horror stories. Slender Man's influence extended into real-life incidents, notably the 2014 stabbing in Wisconsin, where two girls attacked a classmate, claiming Slender Man compelled them. The character exemplifies internet-age folklore, blending fiction with reality in unsettling ways.