Re: "jigaboo". I hadn't encountered that term since I was a kid until this thread appeared, and I was surprised to see it here. Where I grew up, it was considered as offensive or worse than the notorious "n-word". Worse, really, in that the "n-word" might be used carelessly, out of (bad) habit, whereas no one used the "j-word" without intending to express contempt - sometimes good-natured contempt, but contempt nonetheless.

Curiously, the abbreviated term "jig" was relatively innocuous; black and white guys who were friendly with each other might tell a joke using that term (usually in a pun) - but the full word was not spoken.