knock around vs manhandle

knock around

verb
  • Synonym of knock about 

manhandle

verb
  • To assault or beat up a person. 

  • To mishandle; to handle roughly; to mangle. 

  • To move something heavy by force of men, without aid of levers, pulleys, machine, or tackles. 

  • To control (a machine, vehicle, situation, etc.) by means of physical strength. 

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