Nutting is the act of an owner pocketing revenue instead of spending it to improve the team. It is named after Pirates owner Bob Nutting, who epitomizes the practice.
The term was coined in Episode 1822. Ben Lindbergh suggested calling it "banking" (a pun on "tanking"), and Meg Rowley somewhat reluctantly suggested "Nutting". Ben endorsed the term, and it has been a staple of the podcast ever since.