what kind of insult is asshat?

If you have your head up your ass, as in not paying attention to the obvious or you are too stupid to understand the situation, you are wearing your ass as a hat.

Two stage insults can sometimes slip right past the target. You can see it as a waste or as a bonus.

It's not an insult because it's true~

Actually a hat will never sit on an ass, it falls off.

Sounds like a fun clown name to me.

I don't think it's ever meant to be taken seriously

how about, you're fuckin ugly ?

Oh I wonder who this is targeted at...

A good one lol

How about ignoramous. That is what you are.