I wonder if there isn't some connection to the terms "jigaboo" and "jig", as pejorative descriptors for Black folks, and the Irish. I remember reading years ago in a book entitled "How The Irish Became White" about how the Irish and the African descended folks lived together and had children. There were cartoons from the 18th and 19th century pubs which showed negative caricatures of Irish and Black folks dancing together. I just wonder if there is a connection?

If you are interested in this book, HERE is a link to some reviews of the book.

Mick