incantation

( n.)

   Any particularly arbitrary or obscure command that one must mutter at
   a  system  to attain a desired result. Not used of passwords or other
   explicit  security  features.  Especially  used of tricks that are so
   poorly  documented  that  they must be learned from a {wizard}. "This
   compiler  normally  locates initialized data in the data segment, but
   if  you  {mutter} the right incantation they will be forced into text
   space."

[glossary]
[Reference(s) to this entry by made by: {casting the runes}{examining the entrails}{mutter}{rain dance}{shell}{spell}{wizard}]