Language lessons gone horribly Gubbish.

dubbug what's "autodidactic" mean?
Eyerleth Self-taught.
dubbug oh
Eyerleth auto = self
dubbug auto = car
Eyerleth didact = teacher
Eyerleth Well, auto = car because car = automobile.
Eyerleth Which means "self-moving"
dubbug mobile = dangly thing
Eyerleth Well, yes, because it moves.
dubbug so...
dubbug self-moving dangly thing?
Eyerleth Mobile is just a dangly thing that moves.
Eyerleth It's not an automobile.
dubbug but..
dubbug auto = self, self moving dangly thing = automobile
dubbug ...= car?!?!?!
dubbug a car is a self moving dangly thing?!
Eyerleth No...
Eyerleth It's just a self-moving thing.
dubbug and then, autodidactic = self moving dangly thing teacher!??!?!?!
dubbug WHAT KINDA TEACHER IS THAT!?