full-frontal vs skin flick

full-frontal

noun

  • A photograph showing a completely nude person, with all the genitalia. 

adj

  • Showing all the genitalia. 

  • Full-on; unrestrained. 

skin flick

noun

  • A pornographic film. 

How often have the words full-frontal and skin flick occurred in a corpus of books? (source: Google Ngram Viewer )