leer vs walleye

leer

noun
  • A significant side glance; a glance expressive of some passion, as malignity, amorousness, etc.; a sly or lecherous look. 

  • The flank or loin. 

  • An arch or affected glance or cast of countenance. 

verb
  • To look sideways or obliquely; now especially with sexual desire or malicious intent. 

  • To entice with a leer or leers. 

walleye

noun
  • One or a pair of sideways-looking misaligned eyes. 

  • An unusually pale eye. 

  • A species of gamefish, Sander vitreus, native to the Northern U.S. and Canada with pale, reflective eyes. 

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