weeabster
Someone who knows a lot about Japanese culture, like a "Webster dictionary", combined with weeabo. Only used as a pun, really.
A: Pocky is a type of Japanese snack, shaped like a stick and dipped in melted candy.
B: Haha it's almost like you're a weeabster dictionary.
B: Haha it's almost like you're a weeabster dictionary.