fathead vs mutton snapper

fathead

noun
  • A cyprinid fish of the Mississippi valley, Pimephales promelas, the black-headed minnow. 

  • An idiot; a fool. 

  • A blobfish, Psychrolutes microporos 

  • Any of several species of fish of the genus Cubiceps 

  • A labroid food fish of California; the California sheephead. Semicossyphus pulcher. 

mutton snapper

noun
  • Lutjanus analis, a snapper native to the Atlantic coastal waters of the Americas from Massachusetts to southern Brazil. 

  • Rhomboplites aurorubens (vermillion snapper) 

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