What is Drughead?
1.
Someone who does nothing but drugs, and often isn't too intelligent.
Comes from the Archie Comics character
Person: Wooaah man, I'm tripping OUT!
Passerby: Shut your trap, Drughead.
See
2.
the word that not-so-smart people use to mean someone who is on drug (basically someone combined "druggie" and "pothead")
i'm not dumb enough to be a drughead like you.
See