1. A commercial USer. One who is paying *real* money for his computer USage. 2. A non-hacker. Someone USing the system for an explicit purpose (a research project, a course, etc.) other than pure exploration. See USer. Hackers who are also students may also be real USers. "I need this fixed so I can do a problem set. I' m not complaining out of randomness, but as a real USer." See also lUSer. [Jargon File]