Difficult Fap
A rank given to porn (Hentai, Doujin, etc) that is hard to get off to due to the content it contains
"What is my opinion on Euphoria? A difficult fap!" - Projekt Melody
"That new Fate Doujin was pretty good, but the insect stuff made it a difficult fap"
"That new Fate Doujin was pretty good, but the insect stuff made it a difficult fap"