MUDflation
n.— «Somebody in some post mentioned something about MUDs having an inflation problem.…The reason is intuitively obvious even to the most casual observer—when a mobile recreates itself whole from nothingness, it also creates more coinage. So the amount of money in the game goes up and up and up.…Anybody got any other ideas on how to deal with MUDflation?» —“Inflation (on Dikus)” by Ajax Usenet: rec.games.mud.diku Apr. 6, 1993. (source: Double-Tongued Dictionary)