
Another post suggests it comes from a piece of regional literature and that the first bit is about playing in the ocean. So it's a warning about fooling around in the sea, I guess. Either way, it doesn't rhyme and I have no idea why they made up that bullshit for the English. #folkhorrorfriday 
Ha! And just as I hit post he actually talked about playing in the sea. Still nothing about "goblins", it's specifically referring to the spirits of the dead, but whatever. #folkhorrorfriday 
Also looking at the Internet, I completely forgot that the main character in the book was a dude with a wife and daughter. I really need to read it again, I've forgotten far more than I remember. #folkhorrorfriday