A drug user is a person who uses drugs either legally or illegally. The term user is typically employed more to refer to illegal drug use by a person who is often part of a subculture of recreational drug use. Drug users are often referred to as “heads”, depending on the drug used, i.e. , pothead, hophead, crackhead, etc. A drug user may or may not also be a drug abuser, and may or may not have one or more drug addictions.