When Pigs Fly

I'm writing a story at the moment that features a pig. A big, muddy, bristly pig. And it's led me on all sorts of interesting Wikipedia spiral adventures. Did you know that Wall Street in Manhattan is named for a wall built along it to stop pigs from getting into grain fields? And that the phrase "sweating like a pig" is totally inaccurate, because pigs don't sweat? (that's why they cover themselves in mud, to cool down)

But here's my favourite thing. An adynaton is a hyperbolic saying to...