Stick vs squealer

Stick

noun

  • A member of the Official IRA. 

name

  • The Chapman Stick, an electric musical instrument devised by Emmett Chapman. 

squealer

noun

  • An informant. 

  • A young pigeon. 

  • The American golden plover. 

  • Anything that makes a squealing noise. 

  • The European swift. 

  • The harlequin duck. 

  • A pig. 

  • A kind of jug used to carry beer having 1 litre or 32 ounce capacity (half the size of a growler). 

  • Any animal or person who squeals. 

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