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32.
Someone who is very obnoxious, dumb, ugly, all round poofter or dick.
Or someone whose head has been covered in some sort of shit (Manure/Foecal matter).
Look at that shithead, he's got so much shit on his head it ain't funny.
by big dilznik September 22, 2003
 
1.
A complete dumbass; a genuine moron. Someone who has committed an act in which causes harm or temporary discomfort to another.
Do not speak to that shithead over there.

Max is a total shithead.

Frank you shithead, I could have been killed!
by Tom Main February 05, 2003
 
2.
1. A narrowminded or ignorant waste of food, water, and air who usually is inpolite to those with seniority and/or is soveriegn; smacktard; bigot

2. One who is not intelligent enough to use a coherent insult and therefore uses insults such as gay, nigger. They usually can't even piece these together to a half decent insult.
That shithead thinks furries fursuit and screw each other.

"I will go to a game where I am a complete newb and be disrespectful to veterans! I think I shall call them 'Sheep fucker wannabe nigger jew lizard'."
by Berkie April 10, 2004
 
3.
1. One whos cranial cavity is filled with the excrement of his/her own and/or another living organism's bowel excrement/feces.
You are a fucking shit head.
by Zacharoo March 25, 2003
 
4.
N; Proper name; Pronounced "Sha-theed" or "Shi-theed".
The lady filling out the birth certificate said, "For the third time, ma'am, you cannot name your daughter Shithead, no matter how you pronounce it."
by wallamh September 11, 2003
 
5.
One whos ideas appear to have been formed while his/her head was inserted in their own anus.
Jude Law cheated on his girl friend Sienna Miller with a fat, nasty babysitter. What a Shit Head!
by PhillyJester May 01, 2006
 
6.
1. (noun) an asshole that is stupid
2. (noun) Justin Beiber
3. (noun) one's head after it is defecated upon
Bill: Did you see that prepubescent faggot Beiber singing love songs and dancing around like a wind-up monkey?

Joe: Oh yeah, that butt-plug. He's a shithead. And it literally looks like he has a shithead.

Bill: I am pretty certain that he did probably pull his head out of some guy's asshole.
by backspinboy September 21, 2010
 
7.
when someone is really stupid.
"hey shit head whats going on?"
"durr..my shirt!"
by kathleen March 31, 2005