404

To be 404'ed is to be given an invalid phone number, email address, etc. by someone you want to contact again after a pleasurable, but brief, encounter, as in a crowded bar with your friends crowding in on your action.

"Man, I hit on this fine chick last night at the club. I asked for her number, but when I called this morning I realized she 404'ed me!"

by Burro1949 June 11, 2006

404

(v.i.) Out to lunch; not having it together; acting in a stupid way. Typically derogatory.

Derivation: the "404: Not Found" error encountered when surfing the web.

That luser's 404!

Today in class, Hsu was 404.

by The Grammar Nazi March 19, 2001

404

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.

Error 404 page not found

by johnhms August 04, 2008

404

A phrase used when one expects money to be available to them, only to realise that this resource is not actually available at the time it is needed.

Mandem 1 - oi oi, you still on goin' halves yeah?
Mandem 2 - on it, one sec..... Oh shit, you gotta be rampin'?! 404. Money not found!
Mandem 1 - Par.

by mdzc July 28, 2011

404

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

404

as an adjective
-something that you don't understand or is way over your head.

"that linux class I took was seriously 404.. it was just too much to take in, so I dropped it."

by Anonymous November 11, 2002

404

Number of the Beast.

Good God, not again!

by Steve May 13, 2005