spawner vs trout

spawner

noun
  • A female fish, often specifically a salmon, which is physiologically ready to spawn 

  • An object in a simulated game world that spawns further objects. 

  • A program which spawns objects or processes as needed 

trout

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

  • An objectionable elderly woman. 

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

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