A word used by people unable to see reality from a point of view other than the one they were indoctrinated into from childhood. It represents the be-all and end-all arguments that close the case once-and-for-all on further discussion of the issue and makes tin-foil hat wearing buffoons of anyone who refuses to see the logic of their disinformation.

to expose the shame or falseness of

An overly used word by the Bush administration and many other conservatives when trying to persuade the masses that everyone else is wrong except them.

to clear away lies, exaggerations, vanities, etc.