Rule 34I is used in conversations. If porn is brought up in a conversation someone can say Rule 34I. The conversation is then brought back to the point of time that porn was not mentioned and no one can talk about porn for 15 min.
Guy1: hey whats up man, wonderful weather where having.
Guy2: nothing much man you?
Guy1: well i just saw this awesome porno the other day.
Guy2: Rule 34I
Guy1: um.............. wonderful weather where having.
Guy2: Thats what i thought you said.