Obsessive Compulsive SLAG Disorder
This person can't help being a slag. They do slag things all day long, like they're on a mission from god.
She sends a message to a guy she met at the chip shop asking if he wants to go to the graveyard.
She gives head to a guy in the graveyard every friday even though he's dead.
She sends a tweet to a random guy at 3 am with a photo of her face.