mack vs mackerel

mack

noun
  • A raincoat or mackintosh. 

  • An element of a ship's superstructure which places the function of a ship's mast on its exhaust stack, adding the skeletal supporting structure to the smokestack to support the mast's complement of functions. 

  • An individual skilled in the art of seduction using verbal skills. 

verb
  • To seduce or flirt with. 

  • To act as pimp; to pander. 

mackerel

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

  • 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. 

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