perverbiage
Perverse - verbiage: the language of the naughty, the titillating, the sexual, sensual and downright nasty. Used to describe the writings of erotica and/or pornography, especially when referring to scribblers such as Senita de Veaux, Anaiis Nin, Marquis de Sade or Zane. does not actually refer to "perversion" per se'.
I know you love to talk about your coochie, Sally, but "The Vagina Monologues" aren't that great an example of perverbiage; you would be wise to Google more creatively graphic use of words like the Punany Poets to get a real understanding of sensual language.