blatter vs whirr

blatter

noun
  • A sound of rapid motion. 

  • A hard battering of rain. 

  • Blather; foolish talk. 

verb
  • To blather. 

  • To hurry or rush noisily. 

whirr

noun
  • A sibilant buzz or vibration; the sound of something in rapid motion. 

  • A bustle of noise and excitement. 

verb
  • To make a sibilant buzzing or droning sound. 

  • To cause (something) to make such a sound. 

  • To move or vibrate (something) with a buzzing sound. 

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