get down vs start out

get down

verb
  • To concentrate; attend. 

  • Used other than figuratively or idiomatically: see get, down. 

  • To party. 

  • To duck or take cover, usually to avoid harm. Commonly used as a caution or warning in the imperative. 

  • To swallow (something). 

  • To leave the table after dining. 

  • To relax and enjoy oneself completely; be uninhibited in one's enjoyment. 

  • To have sex. 

  • To record in writing. 

  • To bring or come down; to descend; to cause to bring or come down. 

  • To depress; discourage; fatigue. 

  • To dance, particularly without inhibition or restraint, or in a sexually suggestive manner. 

  • To criticise 

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 down and start out occurred in a corpus of books? (source: Google Ngram Viewer )