Possibly derived from the French "Le Porn du Frommage"
Not related to the German "Kaesefilth" which is a hardcore variant for Cheesecake fetishists.
"Excuse me Mr ShopKeeper, I am looking to purchase some cheese-based top shelf material, for I wish to debase myself. Can you help?"
"Certainly Sir, Fromography 3rd aisle, top shelf."
"I found your from-mags under your bed you mucky little man..."
"There's codge all over my bloody fromographic movies."