Meaning of 404 in English

404

transcription, транскрипция: [ // n. ]

[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".

Jargon File English vocabulary.      Английский словарь жаргона.