rip off vs two-time

rip off

verb
  • To pull off by ripping 

  • To steal, cheat or swindle. Especially to charge an exorbitant or unfair rate. 

  • To copy, especially illegally. 

two-time

verb
  • To double-cross. 

  • To be unfaithful to one's (sexual) partner. 

adj
  • On two occasions; twice. 

How often have the words rip off and two-time occurred in a corpus of books? (source: Google Ngram Viewer )