for it vs in a pinch

for it

prep
  • In order to attain some implied goal. 

  • Facing punishment for a misdeed. 

  • Corresponding in volume. 

  • Used other than figuratively or idiomatically: see for, it. 

in a pinch

prep
  • In an urgent or difficult situation; when no other solution is available. 

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