mackerel vs whoreman

mackerel

noun
  • Certain smaller edible fish, principally true mackerel and Spanish mackerel in family Scombridae, often speckled, 

  • typically Scomber scombrus in the British isles. 

  • Certain other similar small fish in families Carangidae, Gempylidae, and Hexagrammidae. 

  • A true mackerel, any fish of tribe Scombrini (Scomber spp., Rastrelliger spp.) 

whoreman

noun
  • A pimp 

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