Mufflowne is a madeup animal by Aleks Vujovic which quickly became popular in the community. The creature is very small, about 7 cm in height (including ears) with a bipedal structure, fur and the ability of gliding short distances. It is often described as a North-American flyng squirrel and a bunny rabbit cross. It has very flexible bones, indegistible apetite for sexual intercourse and as a general rule it is very cute.
It has nothing whatsoever to do with the word muff apart from it's first 4 letters.