bloat vs let air out

bloat

verb
  • To get an overdistended rumen, talking of a ruminant. 

  • To fill soft substance with gas, water, etc.; to cause to swell. 

  • To fill with vanity or conceit. 

  • To preserve by slightly salting and lightly smoking. 

  • To cause to become distended. 

  • To become distended; to swell up. 

  • To increase to an excessive amount. 

noun
  • Pathological overdistention of rumen with gas in a ruminant. 

  • Distention of the abdomen from death. 

  • Wasteful use of space or other resources. 

let air out

How often have the words bloat and let air out occurred in a corpus of books? (source: Google Ngram Viewer )