- A narcotics addict, especially one using heroin.
- One who has an insatiable interest or devotion.
- A <xref>narcotics</xref> <xref>addict</xref>, especially referring to <xref>heroin</xref> users.
- An <xref>enthusiast</xref> of something.
- a narcotics addict
- someone who is so ardently devoted to something that it resembles an addiction