kick out vs let in

kick out

verb
  • To eject, dismiss, expel, or forcefully remove (someone or something). 

  • To stop, stall, or disconnect suddenly. 

  • To perform a kickout. 

let in

verb
  • To associate with. 

  • To let someone or something come in; to admit someone or something in. 

  • To divulge one's inner thoughts to (someone), making oneself emotionally vulnerable to them; to open up to (someone). 

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