The term in question is slang for cheap whiskey. Dunno what you'd use it fer, cept to swap the barrel. Can't see how it'd do much about corrosion, not water-based. On second thought, if it's watered down cheap whiskey, might just do the trick.
"Pie eating contest" - another slang term for drinking booze which is doctored to "smell" like pie. Darn if it doesn't smell like a fresh baked pie too.
