Weebtard
A weebtard is a weeaboo (White person obsessed with japanese culture and anime) who is also retarded. One may argue that all weeaboos are retarded; suggesting all weeaboos are then weebtards. That would be correct.
I called the 40 year old virgin a weebtard and he then pulled a katana on me.
WeebTard
An individual who has transcended the normal cringyness of weeabou a is quite mentally delayed in their way of thought process
Oh god! Boys I think we found a Weebtard