pimp out vs spiff up

pimp out

verb
  • To make showy improvements to; to adorn or beautify. 

  • To prostitute, take advantage of, exploit, use, to hire out or provide to others like a whore. 

  • My mom pimped me out, for my fundraising skills, to the United Way for a fundraiser. 

spiff up

verb
  • to decorate or otherwise make more attractive. 

How often have the words pimp out and spiff up occurred in a corpus of books? (source: Google Ngram Viewer )