Etymology: a play on the name, Holy Alliance, for a coalition of Russia, Austria, and Prussia in 1815
1. a coalition among seemingly antagonistic groups, especially if one is religious, for ad hoc or hidden gain
2. parody of same
Professor Yandle's descriptions of "Baptists and Bootleggers..." refers to a contrived and self-reinforcing antagonism that benefits both parties, one that is traditionally refered to, in Kentucky, as the Unholy Alliance.
-- of, or relating to, something of little value that can evoke such a delighted sound from someone of little intellect.
Those crocheted bun warmers are too twee for words.