The demogorgon is a monster that is very tall, thin and has creepily long fingers and no face. It's mouth is folded on its head and can open to reveal hundreds of tiny sharp teeth.
Commonly known from the Netflix original series Stranger Things, a Demogorgon is a fictional monster from the game Dungeons and Dragons. The monster is known as the prince of demons, and appears in D&D Supplement III: Eldritch Wizardry.
The monster is supposed to have twoheads, but in Stranger Things appears to have one head that splits into four segments.
I can’t believe Barb was killed by a demogorgon within the first few episodes of Stranger Things!