rock cocaine vs speedball

rock cocaine

noun
  • The off-white, crystal-like form of crack cocaine. 

speedball

noun
  • A mix of heroin and cocaine. 

  • An improvised adhoc airdrop resupply pack, composed of ammo, food and water, and other supplies, stuffed into a body bag or duffle bag. 

  • An Egyptian racquet sport. 

  • Coffee with espresso. 

  • A fastball. 

  • A competitive variant of paintball with an equal playing field, contrasted with woodsball. 

verb
  • To take heroin and cocaine at the same time. 

  • To occur fast, as if trying to finish as soon as possible. 

How often have the words rock cocaine and speedball occurred in a corpus of books? (source: Google Ngram Viewer )