spinster vs trout

spinster

noun
  • A woman who has never been married, especially one past the typical marrying age according to social traditions. 

  • A spider; an insect (such as a silkworm) which spins thread. 

  • One who spins (puts a spin on) a political media story so as to give something a favorable or advantageous appearance; a spin doctor, spin merchant or spinmeister. 

trout

noun
  • An objectionable elderly woman. 

  • Any of several species of fish in Salmonidae, closely related to salmon, and distinguished by spawning more than once. 

verb
  • To (figuratively) slap someone with a slimy, stinky, wet trout; to admonish jocularly. 

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