Fnuff (derived from floof) is an adjective used to describe animals with thick, soft looking short fur. For example, a short-haired kitten, a puppy, or an otter.
Fnuff can also be used as a noun to refer to the coat of an animal with soft looking short hair.
Almost like "VOLAPYK" but something that is clearly understood in a friend group. To outsiders it sounds like nonsense but for the friends who understands it makes total sense. Flufiparf is like a language and often includes words not present in any real language.