A person whose actions are either performed clumsy, irrational, immaturely or humorously while under the influence of marijuana, stoned. Also a upcoming cartoon series featuring such stoners.
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 katanaon me.