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1. A type of error message that one receives when the Internet address or site they're searching for cannot be found. I think this link is broken—it keeps giving me a 404 error. Dude, you typed the URL in wrong. That's why you're getting a 404 all of a sudden. He must have deleted his offensive tweet because I'm getting a 404 error when I try to access it now.
2. slang Stupid; clueless; foolish. Maurice is definitely 404 with this kind of stuff, so I would not ask him for help. What kind of 404 idiot jammed this paper in here? What are you, 404? You're pulling on a door that's clearly marked "Push"!
Farlex Dictionary of Idioms. © 2022 Farlex, Inc, all rights reserved.
phr. the answer to your question is unknown; the location you seek is unknown. (From the internet message: Error - 404 that is received when the internet cannot find the address you are seeking.) Q: Where’s the kitchen? A: 404. You’ll have to find it yourself.
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.