A person who uses drugs, especially heroin, regularly; a derogatory or dated slang term for a drug user.
Dope (drugs) + head (person, as in -head suffix denoting a type of person). This compound slang emerged in 20th-century American English in drug culture contexts.
Like many drug-related slang terms, 'dopehead' is considered outdated and offensive by modern standards, but it persists in historical texts and shows how stigmatizing language around addiction has evolved (and why we've moved away from it).
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