buglix

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

buglix

   /buhg'liks/ Pejorative term referring to {DEC}'s {ULTRIX}
   {operating system} in its earlier *severely* buggy versions.
   Still used to describe ULTRIX, but without nearly so much
   venom.  Compare {AIDX}, {HP-SUX}, {Nominal Semidestructor},
   {Telerat}, {sun-stools}.