xyzzy

xyzzy /X-Y-Z-Z-Y/, /X-Y-ziz'ee/, /ziz'ee/, or /ik-ziz'ee/
   adj.  [from the ADVENT game] The {canonical} `magic
   word'.  This comes from {ADVENT}, in which the idea is to
   explore an underground cave with many rooms and to collect the
   treasures you find there.  If you type `xyzzy' at the appropriate
   time, you can move instantly between two otherwise distant points.
   If, therefore, you encounter some bit of {magic}, you might
   remark on this quite succinctly by saying simply "Xyzzy!"
   "Ordinarily you can't look at someone else's screen if he has
   protected it, but if you type quadruple-bucky-clear the system will
   let you do it anyway."  "Xyzzy!"

   Xyzzy has actually been implemented as an undocumented no-op
   command on several OSes; in Data General's AOS/VS, for example, it
   would typically respond "Nothing happens", just as {ADVENT}
   did if the magic was invoked at the wrong spot or before a player
   had performed the action that enabled the word.  In more recent
   32-bit versions, by the way, AOS/VS responds "Twice as much
   happens".

   The popular `minesweeper' game under Microsoft Windows has a
   cheat mode triggered by the command `xyzzy<enter><right-shift>'
   that turns the top-left pixel of the screen different colors
   depending on whether or not the cursor is over a bomb.