Fiend addict

Someone who is so addicted to any substance that they fiend over it. They usually resemble a strung out goblin king that can't afford anything other than what they fiend for.

N - "yo have you seen Zach around?"
G - "oh you mean that fiend addict? Yeah he's a bum
N - "He sure is a fiend addict isn't he? Haha *high fives G*