multi-user shared hallucination

from The Free On-line Dictionary of Computing (8 July 2008)

Multi-User Shared Hallucination

   <communications, application> (MUSH) A user-extendable {MUD}.
   A MUSH provides commands which the players can use to
   construct new rooms or make objects and puzzles for other
   players to explore.

   (http://cis.upenn.edu/~lwl/muds.html).

   (1995-03-16)