Tweek is a cunning, cruel, self-confident, cute and shy imp. He's straight from hell. Tweek has messy blonde hair and red demonic eyes. it has long horns and fangs. height 5'6. loves coffee and tortures souls. can send you to hell. if you manage to become his friend, then Tweek will be very kind to you. he often twitches, gets nervous and screams because he has attention deficit disorder. Tweek is 300 years old demonically, but humanly he is 14 years old.