Sick Head 

Someone who is Sick (in the) Head.
Hence Sick Head.
This is a person who tends to do crazy dangerous and slightly harsh things. This involves getting in fights and going crazy.
(See Jack Brett)

I wouldn't start on that guy he is a sick head, and will put you on the floor

Sick Head by RocketDan September 7, 2004

sick head 

sick head can mean some one is sick in the head, but also can mean something is good.

1:oi man you got my phone
2:yh man i got it
1:SICK HEAD

sick head by Daniel Hayden November 4, 2007

Sick Head 

There Are many Different meanings for 'sickhead'Mostly Used if you see a very angry and abrupt person who is very stressed and if quite scary because of it. Another definition is a very unhygenic person....Greasy,Oily,and just really horrible to look at that it makes you feel sick...One more is if a person randomly Starts Shouting.

"ERGH look at that man his hair is all slicked back hes such a sick head!"

Sick Head by Stacey-leigh May 4, 2005

Sick in the head 

A derogatory term used to describe people with a mental illness.

My granddaughter tried to kill herself; she is sick in the head.

Sick in the head by foxbow November 4, 2012

sickhead 

comes from the south west of London around the Wimbledon area... meaning a person is crazy or sick in the head to do such and obscene thing

-"allow jumping over that barbed wire fence, you sickhead" ... cops are comming

sickhead by Jon July 7, 2004

sickhead 

When someone does something cool or crazy they are a sickhead.

Brody runs onto private farming land and getts the farmer to chase him with his shotgun for trespassing. In this situation Brody is a sickhead.

sickhead by Finn'Shizzle September 10, 2006

sickhead 

someone who is really good at something

I'm a sickhead at dancing

sickhead by dark phoenix90 December 11, 2006