Weeaboo vs. Otaku

Weeaboonoun

A non-Japanese person (especially one of Caucasian ancestry) who is obsessed with Japanese culture and behaves in a stereotypically Japanese manner.

Otakunoun

(fandom) One with an obsessive interest in something, particularly anime or manga.

Otakunoun

(in Japan) a young person who is obsessed with computers or particular aspects of popular culture to the detriment of their social skills

Otaku

Otaku (Japanese: おたく, オタク, or ヲタク) is a Japanese word that describes people with consuming interests, particularly in anime and manga. Its contemporary use originated with a 1983 essay by Akio Nakamori in Manga Burikko.