mix it up vs scuffle

mix it up

verb
  • To compete vigorously, to quarrel, or to fight physically. 

  • To create one or more variations of the usual way in which something is done. 

  • To engage with people, relate to people. 

scuffle

verb
  • To fight or struggle confusedly at close quarters. 

  • To walk with a shuffling gait. 

  • To make a living with difficulty, getting by on a low income, to struggle financially. 

noun
  • A rough, disorderly fight or struggle at close quarters. 

  • Poverty; struggle. 

  • A Dutch hoe, manipulated by both pushing and pulling. 

How often have the words mix it up and scuffle occurred in a corpus of books? (source: Google Ngram Viewer )