fanboy

1. (fandom slang, often derogatory) A male fan who is obsessive about a particular subject (especially, something or someone in popular entertainment media).Examples: "(It's in the nature of comic book fanboy obsessiveness that all of these Eras and Ages and such have been religiously chronicled; it's equally in their nature that no two fanboys can ever agree about anything about any of these Ages and Eras; everything is up for debate, eternally and in microscopic detail.)"; "Six years and seven titles later, their company, Top Cow, is the third-biggest-grossing comic line, thanks mainly to a pair of blood-soaked, modern-day Gothics that have been a hit both with fanboys and a growing number of women."; "Apple fanboys have always devoted equal parts of their mind to genuine reasons to praise their chosen corporation, and to blindly ignoring its faults."derogatoryoftenslang