A blatant fan of the anime Naruto, usually within the 5-15 age group. They believe that Naruto is the 'best show ever', and refuse to admit otherwise. There are many types of Narutards, including but not limited to: five year old Cartoon Network Worshippers, high school freshmen, and 30 year old fat men living in their mothers' basements. Generally the most common type of Narutard seen is the high school freshman. Often they are spotted lurking in the hallways of school, throwing paper shuriken at random passerby and screaming "Dethaxx no Jutsu!"
They watch bootleg DVDs of Naruto in Japanese subtitles, which makes them think that they can automatically speak Japanese, when the only word they have paid attention to is 'baka'. They will run around in a frenzy screaming this word until they collapse because of their unhealthy diet of ramen and pocky. Usually Narutards grow out of their phase within a year due to the extreme beatings they recieve from people who just can't stand them anymore. When one happens upon a Narutard, it is best to keep a distance, as Narutards are deluded, idiotic creatures, as demonstrated by their ability to believe that an loud Anglo-Saxon boy wearing a bright orange jumpsuit could pass as a ninja.
Do not try to reason with Narutards, as they will gang up on you and pelt you with paper throwing stars. While this is not harmful in the least, it is mildly irritating to the point where you could explode in a fit of rage and knock them all to the ground before they could say, "Believe it!"
For further explanation, see: http://www.youtube.com/watch?v=zilcpEX0Pq0