Head Cancer
Also affectionately known as Courtneyitis. It tends to slow your thinking process and is also 2 words. It also makes you more suseptable to problems with speach.
Hye man I gots that Cancer of Head that you been talkin' bout.
cancer head
A person who is addicted to cigarettes, or a person who chain smokes cigarettes(as in smokes them one immediatly after another)
"Didn't you just smoke a cigarette? You need to stop smoking those cancer sticks so much you cancer head."