How would you interpret this word “bumblefuck” in the context?
How would you interpret this word “bumblefuck” in the last sentence?

Thank you.

PS: the excerpt is taken from “Kneller’s Happy Campers” written by an Israeli author, Etgar Keret. And I’m reading an English translation.
the context:
They were real nice and gave Jan tons of food to eat and told him that the mansion belonged to the Messiah King and that all of them were in his crowd and that the Messiah King only liked trance, which was why that was the only thing they kept playing, and full blast. They said the Messiah King was also called Joshua, but everyone there called him J, cause one of the babes called him that once, and it stuck, and that J was originally from some bumblefuck little place in the Galilee, but that he’s been here forever, and there was going to be a significant miracle in a week.

Question

How would you interpret this word “bumblefuck” in the context?
How would you interpret this word “bumblefuck” in the last sentence?

Thank you.

PS: the excerpt is taken from “Kneller’s Happy Campers” written by an Israeli author, Etgar Keret. And I’m reading an English translation.
the context:
They were real nice and gave Jan tons of food to eat and told him that the mansion belonged to the Messiah King and that all of them were in his crowd and that the Messiah King only liked trance, which was why that was the only thing they kept playing, and full blast. They said the Messiah King was also called Joshua, but everyone there called him J, cause one of the babes called him that once, and it stuck, and that J was originally from some bumblefuck little place in the Galilee, but that he’s been here forever, and there was going to be a significant miracle in a week.

Answer

"Bumblefuck" is an indelicate way of saying that a place is isolated/insignificant/in the middle of nowhere. It often has a humorous and somewhat condescending tone.

In this case, given the tone of the rest of the text, I would interpret it as something along the lines of: he was from a tiny and isolated place that was so insignificant and irrelevant (to J and the narrator of the story) that it is not even worthy of being named.