light-o'-love vs slapper

light-o'-love

noun
  • A flirtatious or wanton woman. 

  • An old tune of a dance, the name of which made it a proverbial expression of levity, especially in love matters. 

slapper

noun
  • A prostitute. 

  • A type of detonator which uses a powerful surge of electricity to vaporize a thin metal foil, propelling a larger piece of plastic film at a speed high enough to detonate an explosive upon impact. 

  • One who, or that which, slaps. 

  • A woman of loose morals. 

How often have the words light-o'-love and slapper occurred in a corpus of books? (source: Google Ngram Viewer )