During 2005, the imageboard 4chan experienced an increase in the usage of the derogatory slur "Wapanese". The moderators then used a word-filter, replacing every instance of Wapanese with “Weeaboo” which was a fabricated term originally coined by Nicholas Gurewitch in his Perry Bible Fellowship comic strip. Since then, paradoxically, the term was embraced and has become so popular as to transcend outside its indigenous sub-culture into mainstream. Since Weeaboo is an exact synonym of Wapanese, its usage is exactly the same. That is, it is used to describe a white person who is obssesed with japanese culture. This of course, would include manga and anime.
Usage: Contributions needed!