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1.
A person so consumed by a celebrity or team that he or she has created a lifestyle around his or her infatuation. This person may close down a business during all team sports events, spend money recklessly to see their celebrity or team, and/or ruin relationships over their devotion to said fan-addiction. Examples include impersonators, imitators, priests and superfans.
William Nicoles is such an Alabama fanaddict he painted his house to look like a huge elephant and then spray painted his lawn maroon. Roll Tide!
by Bex Nicole July 16, 2009
 
2.
Someone that is so insanely fanatical about something that they can't even go a couple hours without bringing their obsession up or referencing it. (sometimes said individual is extremely deluded and mistakes their fantasy for reality)
student1: Can you believe Zach in gym today?

student2: He's such a fanaddict that he went into total

Hunger Games mode during dodge ball.

student1: Yeah, and then he was mumbling something

about being back in District 12.

Student2: All of his essays are on the Hunger

Games. Even his Junior Thesis. He's gonna

have to repeat English.
by pseudnonymous272 June 27, 2012