The Aneristic Principle is a concept derived from Discordianism, a system of thinking disguised as a religion. Eristic VS Aneristic.
But never mind all that...
The Aneristic is anything that is contrary to reality. Anerisms are Heuristic Devices used to enforce ones delusions. Basically like Subjectivism, Aneristic ideals are part of an imaginary world-view. The world one wants VS the world that is. See: Truthiness
Needless to say, this perfectly sums up Republican extremists, trying to remake to world according to their fantasies about the 'good old days' or 'God's Laws' etc.
If you hear some Anarcho-Libertarian say 'Get rid of all laws and all crime will stop' you are listening to an Anerism.
If you hear a WingNut Congressman bribed by the NRA to say 'More guns stop crime' that's an Anerism.
If you hear a Hate Radio Shock Jock say 'We need to Subsidize industry and make all Welfare Recipients take drug tests' that's an Anerism.
If you hear a FOX 'News' commentator say 'four people get killed in Benghazi (because Republicans in Congress cut funding for embassy security) and Obama should be impeached!' that's an Anerism.
See how it works now?
NOTE: Keep in mind that it is a complete waste of time for Objectivists to argue with Subjectivists/Aneristic thinkers. You might find its more fruitful to play a speed game of chess with a goldfish.