little finger vs long finger

little finger

noun
  • The outermost and smallest finger of the hand, next to the ring finger, farthest from the thumb. 

long finger

noun
  • The middle finger. 

  • A state of postponement or procrastination. 

  • Hire purchase or credit. 

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