This is a list of names in which the length is 11; and the community's impression is informal.
Beetlejuice m Popular CultureVariant of
Betelgeuse used for the title character of the movie
Beetlejuice (1988), about an obnoxious ghost who is commissioned to scare a family out of their new house. The character's name is spelled
Betelgeuse in the credits, though in other media it appears as
Beetlejuice.
Huckleberry m LiteratureFrom the name of the variety of shrubs (genus Vaccinium) or the berries that grow on them. It was used by author Mark Twain for the character of Huckleberry (Huck) Finn in his novels
The Adventures of Tom Sawyer (1876) and
Adventures of Huckleberry Finn (1884).