Fi, fie, fo, fum: Meaning Now

What do we mean when we say it today?

Look out, Shmoopsters, because this phrase is seriously scary. There's no real meaning aside from terror, or quoting Shakespeare of course. Maybe the reason it's scary is because it doesn't really make sense. It's the same as when Edgar is using it. The phrase pretty much sounds like a bunch of crazy sounds strung together in a row.