As defined in the world of achewood, the activity of fluffing one's hog is defined as one the act of sucking on anothers phallus. It is usually used as a threat or retort to a comment you find. It can be further emphasised by telling someone that they will soon taste your hog.
"You diss my dog, you fluff my hog"
"You are about to enter a world where the only activity that exists is tasting my hog"
A type of romantic short story or fanfiction, similar to the slasher in how it falls into one particular genre that is somewhat specific. A fluff story has two characters who expresss their feelings towards eachover and eventually snuggle and/or cuddle (Non-sexually), usually to the sunset or during a starry night. It has very little focus on story and just contains alot of cuteness.
Comes from "fluff"; a story with no real story.
Guy 1: Yo' dawg, did you see that FluttershyXAJ fluff story when the snuggle during the moonlight?
Guy 2: Yeah, it was fucking adorable.
Guy 1: Fluff stories ARE fucking adorable.