Though this isn’t a word, but it still has a meaning behind it, most of us get frustrated when we see it (1.) …
Also called 404 error . Computers . an error message sent by a Web server to a browser when the user has typed an incorrect URL, tried to access a Web page that is no longer available, or clicked on a broken link on a Web page: They must have taken down their Web site; I keep getting that annoying “404 – File Not Found” message.
Slang . a person who is stupid or uninformed.