The game itself is copyrighted. The stories and legends about him may not necessarily be copyrighted unless it was created in recent years.
Slender man
Slender
...Seriously? Cuz he's Slender, meaning skinny, thin, etc.
the slender man
slender man is real
slender man but in girl-form
Slender Man.
skinny = dünn, mager.
When you happen to see Slender Man, simply picture him as calamari or as somebody who is virtually senseless to overcome your fear. Remember, too, that Slender Man is not real.
No.
no
No, slender man is.