gab vs schmooze

gab

verb
  • To talk or chatter a lot, usually on trivial subjects. 

noun
  • The mouth or gob. 

  • Idle chatter. 

  • One of the open-forked ends of rods controlling reversing in early steam engines. 

schmooze

verb
  • To talk casually, especially in order to gain an advantage or make a social connection. 

noun
  • A casual conversation, especially one held in order to gain an advantage or make a social connection. 

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