2) Its modern use is more likely to refer to a smack (heroin) addict and is usually a term of abuse.
2) Some dirty bag heads left needles on the school playing field.
Whether the origin relates to the dress sense and hygiene or drug use of alternative goths in the region is unknown. It is currently used as both a derogatory and complimentary term.
Numerous pronunciations exist, including "bag ed" and "bageee-ad"
2. I'm not listening to any of that baghead music.
3. I think my next girlfriend's gotta be a baghead like me, I don't wanna hear another Lady Gaga track ever again.