shoot one's mouth off vs swither

shoot one's mouth off

verb
  • To make reckless or exaggerated statements. 

swither

noun
  • A state of indecision or confusion; a panicked state; a flap, fluster, or dither. 

verb
  • To move or swing about. 

  • To be indecisive or in a state of confusion; to dither. 

How often have the words shoot one's mouth off and swither occurred in a corpus of books? (source: Google Ngram Viewer )