blab vs tell tales

blab

verb
  • To tell tales; to gossip without reserve or discretion. 

  • to speak carelessly or excessively 

noun
  • One who blabs; a babbler; a telltale; a gossip or gossiper. 

  • Gossip; prattle. 

tell tales

verb
  • To lie, to be making false claims. 

  • To report someone in authority for a wrongdoing. 

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