Asshole is a multi-purpose label frequently used to describe an ignorant or inconsiderate person.
Most motor vehicle operators, especially if they are driving too fast; driving too slow; talking on a cellphone; playing a stereo with too much bass OR driving a vehicle with billowing clouds of smoke. In fact, they may not be driving the vehicle at all, they could simply be the owner of a vehicle with an active alarm siren. Late at night, that would be a FUCKING ASSHOLE, the worst kind.
The worst kind of person. You cannot fully construct a meaning that fully encompasses what this vicious insult means. If you're an asshole, you are disgusting, loathesome, vile, distasteful, wrathful, belligerent, agoraphobic, and more. Assholes are human fecal matter. They are the lowest of the low. They transcend all forms of immorality. It is the very worst of insults; to be called an asshole is to have your very soul ripped apart and shat on. I say that the word "asshole" is the worst cussword of the english language, worst than fuck, shit, and cunt combined.