Welcome, to the NUF~ Now if you flip the letters of the NUF backwards you'd get FUN, but it can also be an acronym for "Forum of Unusual Names". @Tony is Illuminati confirmed.
https://encrypted-tbn1.gstatic.com/images?q=tbn:ANd9GcQ8Lio5IiqY0GvXnO6jkiG_L6PAIGx0fNX4xrLwg5r1fe3ZGvgE