#drug_user__substance_abuser__substanceabuser__user  a person who takes drugs
  supertype:  person__individual__someone__somebody__mortal__human__human_being__humanbeing__soul  a human being; "there was too much for one person to do"
  subtype:  addict  someone who is physiologically dependent on a substance; abrupt deprivation of the substance produces withdrawal symptoms
     subtype:  caffeine_addict__caffein_addict__caffeinaddict  someone addicted to caffeine
     subtype:  drug_addict__junkie__junky  a narcotics addict
        subtype:  cocaine_addict__cocaineaddict  a person addicted to cocaine
        subtype:  heroin_addict  someone addicted to heroin
        subtype:  opium_addict__opiumaddict__opium_taker__opiumtaker  someone addicted to opium
        subtype:  withdrawer.drug_addict  a drug addict who is discontinuing the use of narcotics
     subtype:  speed_freak__speedfreak  addict who habitually uses stimulant drugs (especially amphetamines)
  subtype:  head.drug_user  (informal) a user of (usually soft) drugs; "the office was full of secret heads"
     subtype:  acid_head  someone who takes LSD
     subtype:  hash_head  a user of hashish
     subtype:  pill_head  a consumer of amphetamine pills
     subtype:  pothead  someone who smokes marijuana habitually

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