Visiting Hannah: factoid about borrachos

Hannah is working on her history PhD and was reading a book about the trade of wine from Madeira, a Portuguese colony off the coast of Africa. "The book mentions that a goatskin bag used to carry wine was called a borracha. I thought, hmm, that's funny, they named it after a drunk guy. Then I realized it was almost certainly the other way round - when you're calling someone a borracho you're calling him an old goatskin bag filled with wine!"