bib vs knock back

bib

verb
  • To beep (e.g. a car horn). 

  • To dress (somebody) in a bib. 

noun
  • A rectangular piece of material, carrying a bib number, worn as identification by entrants in a race. 

  • A patch of colour around an animal's upper breast and throat. 

  • A bibb (bibcock). 

  • Similar items of clothing such as the Chinese dudou and Vietnamese yem. 

  • An item of clothing for people (especially babies) tied around their neck to protect their clothes from getting dirty when eating. 

  • The upper part of an apron or overalls. 

  • A colourful polyester or plastic vest worn over one's clothes, usually to mark one's team during group activities. 

  • Shorts which are held up by suspenders. 

  • A north Atlantic fish (Trisopterus luscus), allied to the cod. 

knock back

verb
  • To press or knead (dough) so as to remove air bubbles. 

  • To drink an alcoholic beverage swiftly or often. 

  • To stun; to surprise. 

  • To reject; to refuse. 

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