bird dog vs twig

bird dog

verb
  • To watch closely. 

  • A multiservice tactical brevity code requesting configuration of sensors. 

  • To seek out. 

noun
  • A dog, especially a pointer, used in shooting to retrieve the dead birds. 

  • A tout. 

  • A person who seeks out real estate investment opportunities in exchange for a fee. 

  • A person who tries to steal someone else's romantic partner 

  • A radar detector (for detecting police speed traps). 

  • A hyperextension exercise performed lying on the knees, with one arm and the opposite leg lifted. 

twig

verb
  • To observe slyly; also, to perceive; to discover. 

  • To twitch; 

  • To beat with twigs. 

  • To tweak. 

  • To realise something; to catch on; to recognize someone or something. 

  • To understand the meaning of (a person); to comprehend. 

noun
  • A small thin branch of a tree or bush. 

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