A fanboy is a male who is highly devoted and biased in opinion towards a single subject or hobby within a given field. Fanboy-ism is often prevalent in a field of products, brands or universe of characters where very few competitors (or enemies in fiction, such as comics) exist. An example is the market for CPUs for PCs, where AMD and Intel together hold a market share of 99.6% (as of Q1 2009). In this market, users of home computers realistically only have a choice between two brands, and hence, a fight over which is better easily ensues. In this field, an "Intel fanboy" prefers CPUs made by Intel, and might aggressively defend their supposed superiority compared to the other brand(s), be skeptical or in denial about negative reviews of the product, and exert a high level of brand loyalty. The same brand war ensues when comparing video card brands Nvidia and ATI, which together dominate the video card market.|
The term originated in comic book circles, to refer to someone who was socially insecure and used comics as a shield from interaction, hence the disparaging connotations. Fanboys are often experts on minor details regarding their hobbies, such as continuity in fictional universes, and they take these details extremely seriously. The term has also been applied to criticize perceived fan elitism. The term itself is often used in a derogatory manner by less serious fans of the same material. Nevertheless, self-labeling usages of the term have been noted; in the songs of the fannish parody musician Luke Ski, many characters proudly consider themselves fanboys.
The term is usually used by and applied to people in their teens or 20s; an age group that is typically found pursuing geeky hobbies obsessively. Within this group, common objects of deference for fanboys are TV shows, movies, anime, cars, video game consoles, video games, music, operating systems, trains, home computers (in earlier decades), MMORPGs, ISPs, software and computer hardware companies.
Think of how stupid the average person is, and realise half of them are stupider than that