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!
Shrekladdinism is the religion where you believe in Shrekladdin, Father Sanchez, Jacked Jesus, and Ghost Boy, This religion is the best to choose, The religion does not allow Jews, Furries, Raccoons, Adam Sandler, George Bush, and Balloons.