get through vs mop up

get through

verb
  • To complete; to finish. 

  • To be made successfully; to reach the addressee. 

  • To overcome; to endure. 

  • To communicate successfully; to make contact, or get one's point across. 

mop up

verb
  • To finish something off; to apply a finishing touch 

  • After they argued, it fell to me to talk to her and try to mop up. 

  • To win a competition decisively. 

  • To get rid of (enemies) within a certain area. 

  • To clean up an area destroyed by a natural disaster or by violent activity. 

  • To pitch the final innings especially of a game that is no longer close. 

  • To consume or get rid of an excess of something. 

  • To fix problems; to correct or repair. 

  • To clean up (liquid) with a mop, rag, sponge, or other cleaning device. 

  • To absorb the leftovers of a dish with bread etc., in order to eat them. 

How often have the words get through and mop up occurred in a corpus of books? (source: Google Ngram Viewer )