Does he just use it as a random expletive? “Ow, shit hook!”
That’s kind of strange. “Shit hook” has been a course synonym for “hand” for most of the twentieth century – eg; “Keep your shit hooks off my tools, ya bastid.”
I don’t know if it’s necessary to formally announce that I am stealing this, but I formally announce that I am stealing this.
In the “inward singing” bit on the album, Jack calls Kyle something like “cockass” or “cockayss”.