Rabid Inuyasha Fan. A crazy fan of Inuyasha
who is obsessed to the point of commiting suicide if it was to hypothetically be cancelled.
Tell - tale signs of a RIF include:
Badd speelink and gramer
Inability to comprehend simple terms like STFU noob
Making you want to bash your skull in.
Also see flamebait
RIFs give all the mature fans of the show a bad reputation.