I think satire and parody are much too broad here, maahey, for what has been done with swine before pearl in this instance.

The inverted aphorism takes another track completely.

There are hundreds of rhetorical devices that have very specific functions, and I would suspect that there is a very specific turn for taking a commonly known expression, inverting it, to bring new nuance to the meaning of the tried and true old phrase.

Thanks, grapho, for the suggestion. I'm on hold for this one...