chop-chop vs pick up speed

chop-chop

noun
  • Tobacco that is produced and sold without excise (tax), and therefore cheap and illegal. 

intj
  • Used to urge someone to do something quickly. 

adv
  • Quickly. 

pick up speed

verb
  • To accelerate 

How often have the words chop-chop and pick up speed occurred in a corpus of books? (source: Google Ngram Viewer )