Slender Man is a mythical creature often depicted as a tall, thin figure wearing a dusted looking black suit and a blank face. According to the legend, he can stretch or shorten his arms at will and has tentacle-like appendages protruding from his back. Depending on the interpretations of the myth, the creature can cause memory loss, insomnia, paranoia, coughing fits, photograph/video distortions and can teleport at will