Fan Club

This is an obsolete usage. "Fan club" now generally means a group of people devoted to one particular film, TV show, actor, or, less commonly, writer.

from Fancyclopedia 2

The best fan club is about two feet long, made of hickory or ash, with a ring of sharp steel spikes at the end. It is useful for clearing an escape-route from a smokefilled room and in various other ways which will suggest themselves to the reader. But the organization which we designate by this term is a group of persons who meet face-to-face every so often; the word is often misused. Fan groups actually called clubs include ISFCC, JVPC, Impossible Story Club, and an indefinite number of local groups; quite aside from the colloquial designation of any organized fan group as a "club".