boot out vs shelter

boot out

verb
  • To fall or slide out of a turn due to excessive lean, which causes the athlete's boot to contact and pivot on the surface and the proper surface contact element to lose contact and traction. 

  • Emphatic synonym of kick out: to remove, to eject, to expel. 

shelter

noun
  • A refuge, haven or other cover or protection from something. 

  • An institution that provides temporary housing for homeless people, battered women, etc. 

verb
  • To take cover. 

  • To provide cover from damage or harassment; to shield; to protect. 

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