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!