Weeaboo

A derogatory term for a person who mentions anything about Japan (sometimes other Asian cultures too). Often shortened to weeb. Originally it was a term for usually white people with an unhealthy obsession for and belief in the absolute superiority of japanese culture, called "wapanese", "wannabe japanese" or "white japanese". However today it has lost that meaning and became a simple insult to shame anyone for knowing anything about Japan. Since japanese culture (or Asian culture in general) is relatively or becoming more popular in the west, the existence of the term could stem from an unspoken inner belief of one's own western culture being challenged.