bug-of-the-month club = B = bulletproof
buglix /buhg'liks/ n.
[uncommon] 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.
--The Jargon File version 4.3.1, ed. ESR, this entry manually entered by rootbeer277.