This is basically a Japanese internet slang used commonly to define people who are obsessed with the Japanese culture.

Some people see them as annoying, since they always like to imitate the Japanese culture, even if they're not Japanese.

One who eats pocky in their underwear and butchers the Japanese language.

A person who is overally obsessed with anime/Japanese culture or shows who commonly boasts their fake knowledge. The knowledge they know is commonly false, although, a weaboo could be a person who is overally obsessed with Japan but knows the facts and common knowledge.

Someones who's life only resolves on anime, manga and video games. They wear products that resolves to an anime or video game and only talk about it. It gets annoying.

Someone who's world revolves around anime and manga and that's all they freakin' talk about 24/7 because they don't know anything about anything else in the world. They are like otaku's but worse and and major geeks and nerds. AKA Melissa Leonard. They also bash the japanese culture and language by trying to talk japanese and saying KONICHIWA!!! OMG THAT'S KAWAII DESU!!! NYA!

Slang for a japanese anime/manga culture obsessed westerner.
Usually owns merchadise of their favourite shows and characters, such manga, dvd/blurays, figurines, posters, body pillows. Will sometimes deny they are weaboos. Perfect example Russel "Soressor" Ion, the molester.