A person who has smoked enough sherm to acquire serious brain damage. This does not take long to happen, and is often characterized by trembling, drooling from a slackly held-open mouth along with a rambling, mostly incoherent pattern of speach.
Oh man, that Reggie, he ain't nothing but a shermhead now; he ain't no damn good for nothing! Alls he is is a twitching drooling fool slinking around in the alleys. He melted his brains real good.
Dumb motherfu**er!
by Rightwild April 12, 2008
one who uses "sherm" "pcp" or "angel dust" a lot.
that fucker down the street is always dipping his cigarettes in a smelly liquid, hes a damn sherm head
by therict February 10, 2003
pcp addict (sherm addict)
alota shermheads out tonight
by 187 on an undercover cop December 13, 2006
One who consistently smokes "sherm."
Ii see that shermhead smokin' that sh*t all the time.
by Shazel October 24, 2005
an idiotic person,not serious;often used in gangster language
A that man Major Willis Serious about those cars but his partner a straight shermhead.
by Major Willis April 16, 2003

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