Joseph references "binders full of women" during this episode. "Binders full of women" was a quote from Mitt Romney during his 2012 presidential run. It was used in response to a question about pay equity. He insinuated that his governor's office had binders of resumes from women. Joseph uses it tongue-in-cheek, regarding his subversive attempts to save women detainees by making them Marthas, by reviewing their histories and information.
On the DVD release, this episode is titled "Watch out".
Esoteric is used here referring to very limited genre of book. Joseph wrote a book appealing to a small group of readers.