SLANG known among internet users as another way to tell someone to f*uckOff.
Its an expansion and joke at the"404 url not found" displayed in webbrowsers when a link dosent work.
Its an expansion and joke at the"404 url not found" displayed in webbrowsers when a link dosent work.
404off you tit.
by devo404 June 17, 2009
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