Wiktionary
a. Of or relating to a fan; characteristic of fandom.
Usage examples of "fannish".
He pictured Dungannon ordering him to stay for the lecture, and then introducing him to the fannish multitude of would-be authors and instructing him to accept unsolicited manuscripts.
People will write up stories in fan magazines describing the incident, and it will become part of fannish history.
Appin Dungannon, Rubicon had earned its place in fannish history long before the banquet degenerated into a shouting match between rival fanzine publishers over the heretofore unexplained identity of the mysterious, fiendish Chip Livingstone, and before one desperately sincere femmefan burst into tears and subsequently severed all contact with the hobby.
Did he tell you about the time he took a manuscript-in-progress to a con so that he could read from it, and one of the fannish bastards stole it?
She maintains a close relationship with sf fandom, appearing at conventions and engaging in as much fannish activity as time will allow.
Moira while auditioning for a part in a fannish play that was to have been performed at a small regional relaxacon, some eighteen years beforeand he had not gotten the part.