gasbag vs godmother

gasbag

verb
  • To speak foolishly, pompously, or at length; to blather. 

noun
  • A bag or bladder to hold a reservoir of gas, as in a hot-air balloon. 

  • A lighter-than-air aircraft; a balloon or dirigible. 

  • A person who is overly garrulous or prone to making empty, unsupportable statements; a windbag. 

godmother

verb
  • To act as godmother to. 

noun
  • A woman present at the christening of a baby who promises to help raise the child in a Christian manner; a female godparent who sponsors the baptism of a child. 

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