When a person on Facebook becomes fans of literally every little thing they believe that they are associated with. The person shows how hip they are by being fans of everything cool and appearing to be interested in things for attention.
Friend 1: Jeez, Joe is now a fan of getting crunk, sleeping in, the NFL, and like 10 other things.
Friend 2: Wow, Joe has really turned into a facebook fanatic hasn't he?
Someone who connects with all genres of music. Someone who feels the Music in their soul and it becomes something like an addiction. Like you need music to function.
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!