"The great thing about Snekmeat," the traveling merchant said, "Is that I can sell him more than once. I sell him, he shows up a few days later well fed and sleek, I wait for him to lose some weight and sell him again."

I've played a LOT of FO4 and recently added a mod that turns Dogmeat into a New Vegas nightstalker. Nightstalkers canonically swallow people whole. Naturally, I'd be feeding people to him in-game if the mod let me do that. Instead I just have to imagine it.