from the HTTP error "file not found on server" Extended to humans to convey that the subject has no idea or no clue - sapience not found. May be used reflexively
"Uh, I'm 404ing" means "I'm drawing a blank".
by Biohertz January 30, 2003
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Geek slang for someone who is clueless or doesn't understand something. From the web page error "404 not found".
Don't ask Tim, he's 404.
by MawBTS May 02, 2007
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Nobody home.
Couldn't find it.
Nothing there.
Got to my girlfriend's house last nite, but that was a 404.
Don't bother trying, it's a 404.
Uh, not a 404 again!?! I've been trying all day!
Peter is a complete 404.
by shonny March 05, 2007
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In the early days of www, at CERN in Switzerland, the fault-tracing team was based in room 404. That's where the problems went to.
by johnhms July 12, 2008
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Not Found (No where to be found, ect.)
Orginating from internet page error 404 File Not Found
That Shit is 404
by DaMan November 28, 2002
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A person who is "not there" or who is not performing their function well.
Good luck getting service, that bar was staffed by a bunch of 404s.
by narcolepticdoc February 14, 2012
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