The Slender Man (or Slenderman) is a fictional character. The strange paranormal creature is often described as unusually tall, dressed in a black suit, white shirt and black tie. He has long, thin arms and legs, and his face is completely blank.
According to the growing legend, Slender Man can stretch or shorten his arms at will and has tentacle-like appendages protruding from his back. His mere presence can cause memory loss, insomnia, paranoia, nosebleeds and coughing fits.