for it vs up shit creek

for it

prep
  • Facing punishment for a misdeed. 

  • In order to attain some implied goal. 

  • Corresponding in volume. 

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

up shit creek

prep
  • In trouble; in a difficult situation. 

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