A porker is also a phrase applied to those persons, or animals, that have a physical mass exceeding the norm.
(personal side-note): I once took my pre-schoolers for a walk, and we ended up before the neighborhood hog, named Mooshie, of all things. We fed it baby carrots and cellery stalks. It was a grand porker of a hog, and that was the first (and only) time I've salivated over a living creature. I mean, really salivated. I kept on asking the children if they felt hungry, too. To which I only got disintrested replies in the negative. Children become somewhat stoned in the face of live animals, I've decided. I have no idea why, but they do. They oogled and googled, and all I could do was rub my belly in carniverous desire.