The Safety Word is "Alfred"
To borrow a line from Dorian of Postmodernbarney:
"Subtext? What Subtext?"
Seeing Bruce Wayne tied to a chair by an underage boy in chainmail panties and elf boots while he himself is forced to wear a yellow and red spandex costume, and being told that "it is all for his own good," well, it brings back memories.
Hey, I had to pay for college somehow.
I think that on the next page, a mutant banana-man wearing a rooster mask attacks them with a bullwhip made from a chain of linked sausages.
Nope, there's no subtext here.