amp vs sex up

amp

verb
  • To excite. 

  • To intensify or increase. 

  • To connect to amplifiers. 

  • To amplify. 

sex up

verb
  • To sensationalize. 

  • To enhance in terms of fashionable appeal. 

  • To make more sexually attractive. 

  • To arouse somebody sexually 

  • To take part in sexual acts with. 

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