Definition of "slanshack"

Slan Shack - A science-fiction house in Battle Creek, charter members being Al & Abby Lu Ashley, Walt Liebscher, and Jack Wiedenbeck. Acquired in the summer of '43, it wasn't occupied by the slans till the eve of the Michiconference. EEEvans joined a little later.

1944, John Bristol Speer, “sfn - Sydcon”, in Fancyclopedia‎

Sad to relate, however, some of the European delegates were probably insurgents rather than true fen. Probably none of them had ever been in a slanshack, and there were only a few completists among them.

1951 May 21, Winthrop Sargeant, “Through the Interstellar Looking Glass”, in Life

In fact we *had* a slanshack about 6 blocks from his house, but he never had the time to hang out much -- he would drop by for an hour or so to drink beer...

1995, Richard Newsome, “Signing one's real name”, in rec.arts.sf.fandom (Usenet)