Taking a porn picture and photo shopping it until there is nothing left that looks like porn.
They potatochopped his dick into an Ice Cream Cone thus unporning it.
Porn that makes you feel sick and not horny.
Person 1: "Have you seen 2 girls 1 cup?"
Person 2: "That one unporn with the two chicks that eat shit and vomit?"
Person 1: "YES."
Person 2: "Fuck no."