fib vs string on

fib

verb
  • To lie, especially more or less inconsequentially. 

noun
  • A liar. 

  • The fibula. 

  • A kind of experimental poem where the number of syllables in each line is the next succeeding Fibonacci number. 

  • A lie, especially one that is more or less inconsequential. 

string on

verb
  • To continue to convince (someone) of something untrue; to maintain a lie or scam aimed at (someone). 

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