I seem to recall a bunch of songs by Lord Invader and His Twelve Penetrators that were very double entendre-ish and had the sounds of an old joke in them. Calypso music seems rife with them. Mainly I'm recalling the story of the boy who wants to marry a girl whom his father claims is his and the boys mother don't know. What the father doesn't know is he is not the sons father.

I also believe that I'M MY OWN GRANDPA began life as a joke. But I've also heard that it has very old British Isles ancestors. Which to believe? Maybe it's an old English joke.

Don