blabbermouth vs loose-tongued

blabbermouth

noun
  • A gossip. 

  • A person who talks excessively. 

  • A kind of foam-dispensing nozzle used in firefighting at airports. 

loose-tongued

adj
  • garrulous, gossipy 

How often have the words blabbermouth and loose-tongued occurred in a corpus of books? (source: Google Ngram Viewer )