blab vs give the game away

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. 

give the game away

verb

  • To mistakenly reveal a secret. 

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