get going vs start out

get going

verb
  • To begin or commence. 

  • To talk passionately without interruption. 

  • To cause someone to talk passionately without interruption. 

  • To cry or bawl loudly. 

  • To arouse sexually. 

  • To leave, or depart. 

  • To excite intellectually. 

start out

verb
  • To begin. 

  • To emerge suddenly; to jump out. 

  • To be or become conspicuous; to stand out. 

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