A user (especially in IRC) who disobeys the rules of the servers that he or she is using and usually resorts to disruptive or offensive behavior/behaviour
Derogitory term tech support personel use to describe many users A Luser is basicly anyone who phones tech support without being infront of there computer with it turned on
A user who is a loser The result of a dispute at MIT some years ago where computer error messages referred to errors by users Others changed users to losers, and the dispute continued until someone coined the term lusers, which everyone liked
A blend of "loser" and "user " Someone who doesn't have the faintest idea what they're doing and, more importantly, this individual refuses to do anything about it