skrog

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

scrog
skrog

   /skrog/ [Bell Labs] To damage, trash, or corrupt a data
   structure.  "The list header got scrogged."  Also reported as
   "skrog", and ascribed to the comic strip "The Wizard of Id".
   Compare {scag}; possibly the two are related.  Equivalent to
   {scribble} or {mangle}.

   [{Jargon File}]