An over excited geek
that thinks they can speak Japanese
just because they're anime
fans. These specimen are also found at Anime Conventions
dressing up as their favorite character, usually making asses out of themselfs while they pose for a picture.
Sure signs that you might be an Otaku;
1. You memorized every single anime song that you've heard.
2. When you turn down a college because they don't have a decent anime club.
3. If you start daydreaming that your girlfriend or boyfriend is an anime character.
4. You've seen one anime over 100 times.
5. You start wearing Sailor Moon underwear.
Please, stop the madness.