Otaku is a person (typically male) who has absolutely no social life. Thus an otaku may sits around playing World of Warcraft, trading Dungeons and Dragons cards, watching Japanese animations, and jerking off while relishing pornographic material when he is alone. An otaku will be proud of, and will boast about his mighty forearm that developed over the many years of "over-masturbation".
Whilst leading a life of this sort, an Otaku will complain that no girls are willing to give him pussy.
WHYYYYY?????????????? Strange isn't it?
"Fuck, that otaku left cum stains on my sailor moon comic book!!"
"That guy's such an otaku. He plays WoW all day long and goes for a wank before sleeping."
A person often described to be as a loser who stays at home and watches anime, plays video games 24/7 and constantly talks about Japan being superior to every country in the world.
These assholes often talk non-stop about anime and other Japanese related media and entertainment.
Most Otakus' favorite video game company is, Nintendo and often thought as, nerds, among nerds.
Slightly less annoying than a weeaboo