Can be used as a proper noun when capitalized (Blueflamewolf) or as a verb.
The noun can indicate someone who has lost all touch with reality through increased involvement in their fanfic, usually resulting in self-inserts in fics the author honestly believes to be true, usually due to psychic powers on the author's part. Such a person may sometimes amass a small cult following on certain fanfiction archive sites, such as fanfiction.net. The verb form may be used to indicate the process of becoming or the continuing existence as a Blueflamewolf.
The word's etymology comes from the screenname of the first of its kind.
"Sheila's such a Blueflamewolf. She actually scratched my eyes out the other day when I told her that The Phantom of the Opera/Legolas/Willy Wonka/Darth Vader wasn't real. I'm blind now."
OR
"Sheila, you've got to stop blueflamewolfing like this! We suggest you seek intensive therapy. Gigi's blind because of you!"
OR
"Sheila's obviously blueflamewolfing. It's like Sylvia Browne on crack while listening to Andrew Lloyd Webber!"
A bluefag is a person (usually female, but there are male bluefags too) who tries to sway a conversation into one about eye color. After she does that, she then proceeds to talk about her own eyes, and fishes for compliments from the people she's talking to.
Bluefags usually talk about their eyes to distract other people from how ugly the rest of their face is.
Note: Bluefags represent an extremely small percentage of people with blue eyes. Having blue eyes does NOT make you a bluefag; bragging about them does.
Bluefag: What color are your eyes?
Regular person: Brown.
Bluefag: Well, my eyes are aqua-blue with green speckles and a yellow outline.
Regular person: Shut up, Bluefag. You just want to talk about your eye color because you're trying to hide the fact that your face looks likecrap. Your eye color may look OK, but your eyes themselves look terrible with your face.