beat to a pulp vs kick in

beat to a pulp

verb
  • To beat up (a person) more than usually severely. 

  • To defeat severely in various, even non-contact, competitive sports. 

kick in

verb
  • To kick or strike (a person); to beat up 

  • To kick or strike so as to cause the object struck to collapse or fall inwards. 

  • To start, connect, or take effect, especially in a sudden way. 

  • To contribute, especially to a collection of money. 

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