noun phrase. The best defense against a shiv is your inside voice.
Real citation: "Soon after, they hired their dog whisperer. They told him he'd have to be a prison inmate whisperer too."
(Jeff Klinkenberg, Aug. 31, 2008, St. Petersburg Times, http://tampabay.com/features/humaninterest/article789875.ece)
Made-up citation: "I was too outspoken and bold to be a prison inmate whisperer. So I help inmates another way: I'm a prison inmate yodeler--the best in the greater metropolitan region."