A pornographic, antonymous pun on "Error 404". It suggests, much unlike Error 404, that if you can think of it, that there is porn for it.
Person 1: Dude, wtf. Why would you even think of a santa-midget toe-fucking a hippo with his tounge?
Person 2: I didn't think of it... it already exists; Rule 404.
Person 2: I didn't think of it... it already exists; Rule 404.
by its been emotional October 9, 2011
Get the rule 404 mug.by SawronZXZ April 16, 2010
Get the Rule 404 mug.by Gikon November 14, 2007
Get the Rule 404 mug.