Luser
（重定向自Cluebat）
In Internet slang, a luser (sometimes expanded to local user; also luzer or luzzer) is a painfully annoying, stupid, or irritating computer user. The word is a blend of "loser" and "user". Among hackers, the word luser takes on a broad meaning, referring to any normal user (in other words, not a "guru"), with the implication the person is also a loser. The term is interchangeable with the hacker term lamer.