That got me thinking, if that’s the word for it: “Satan’s Anus; I wonder what comes out of Satan’s anus?”
Now normally the purpose of defecation is to eliminate harmful or unneeded substances from the body; i.e., we expel what’s bad. But Satan is the ultimate evil- nothing can be worse than him. What could he shit that his own self wouldn’t be worse than? In fact, if he expels evil, he would be diminishing himself.
The only possible answer is that to maintain a state of maximum evil, he expels any goodness he might happen to have inside him. He excretes negative evil = something good. And that would fit with the old idea of the King of the Underworld being in charge of all the mineral wealth of the infernal regions like the ancient Roman god Pluto. And gold and jewels, while good in themselves, do spark the greed, vanity and envy of the wicked, which in turn fits the idea of Satan delighting in using goodness itself to ensnare souls.
So by this hypothesis, Satan shits out gold and jewels.
And it also lends itself well to sermons, well, demonizing greed: “You who covet gold and jewels, do you not know that what you desire is Satan’s own excrement? Repent!”
In The Canterbury Tales (1972) directed by Pasolini, Satan excretes monks from his anus, which makes a lot of sense to me. There is a clip of it on YT (“Satan farts the monks”) for those who are curious.
As explained in Thor: Ragnarok, the “Devil’s Anus” is a particularly nasty wormhole. No known instance of gold and jewels falling from it, though I suppose it’s possible.