samizdat

noun2

1. •
   [before a noun] The secret copying and sharing of illegal publications, chiefly in the Soviet Union; underground publishing and its publications.

   • Now liberal cultural power has increased, the ACLU doesn’t seem very interested in the liberties of non-progressives anymore, and Dr. Seuss sells as pricey samizdat. — 2021
2. •
   A samizdat publication.

   • Journals which once would have circulated, if at all, as underground samizdaty, those involved risking years in a labour camp, now carry the name, address and phone number of the editor. — 1990