A person, who, by an unnatural process of the human body, floweth crap out of the mouth and speaketh unintelligible words out of his bottom. These words are often accompanied by an unpleasant smell, and the crap that floweth out of the mouth can also flow onto online sites such as forums, IRC chat sites and social networking sites such as Farcebook and Twitter.
Josh: "Beavis is a butthead."
George: "How so?"
Josh: "Because crap comes out of his mouth and noise outta his back, that's how."
The coolest guy on tv. He will score soon.
Butthead: He said wood, uh hehehehe.
A throughly unlikeable person who is stubborn, four flushing, ignorant, arrogant, and among other things, a real jerk.
Uh...Huh huh...Uh...Huh uh huh huh...Uh...This sucks.
I noticed you have braces. I have braces too you know.
N. Person who thinks with his ass, as opposed to his brain as most normal human beings do. Can always be counted on to do something stupid, especially when the situation does not call for it. Made popular by a popular MTV animated series about two diametrically different fools whose aim in life is to be the best at doing absolutely nothing.
That guy's a member of the Young Republicans... what a butthead.
The epitome of cool.
butthead: Uh...huh huh...hey beavis, whaddya think would happen if a reindeer took a dump in mid air? uh...huh huh huh...
beavis: umm...i dunno. what?
butthead: they hit the ground and go blop, you dumbass! uh...huh huh huh huh huh...
beavis: heh heh heh heh...*blop*...
Hey Beavis...I just like, thought of something. It was pretty cool.
Huhuhuh, yeah. We're old.
a stupid, obstinate, or perverse person.
Biff Tannen was a butt head.