promo vs tittle-tattle

promo

verb
  • To promote; to publicize. 

noun
  • an interview or monologue intended to promote a character or an upcoming match. 

tittle-tattle

verb
  • To spread gossip. 

  • To engage in such gossip. 

noun
  • An idle, trifling talker; a gossip. 

  • petty, idle gossip. 

How often have the words promo and tittle-tattle occurred in a corpus of books? (source: Google Ngram Viewer )