Nine Inch Nixon Share definition Flag The term for a man of better than average quality in the crotchial region. Usually at least 9 inches. You know, they call me nine inch nixon.Why's that?*Unzips pants**Gasp!* Nine Inch Nixon by BigNinjaJoe December 15, 2011 0 0 Get merch Get the Nine Inch Nixon mug. Buy Now — $32.95 See more merch