black tar vs shit

black tar

noun
  • An illicit drug formed from the incomplete acetylation of morphine, containing a variable percentage of heroin. 

shit

noun
  • Any recreational drug (e.g. cannabis, heroin, etc.). 

  • Stuff, things. 

  • Solid excretory product evacuated from the bowels; feces. 

  • The act of shitting. 

  • A problem or difficult situation. 

  • Rubbish; worthless matter. 

  • Anything exceptional or remarkable. 

  • (in negations) Anything. 

  • Nonsense; bullshit. 

  • The smallest amount of concern or consideration. 

  • A strong rebuke. 

  • A nasty, despicable person, used particularly of men. 

  • (the shit) The best of its kind. 

intj
  • Used for mere emphasis; heck, hey. 

  • Used to show displeasure or surprise. 

  • Expression of worry, failure, shock, etc., often at something seen for the first time or remembered immediately before using this term. 

adj
  • Of poor quality; worthless. 

  • Nasty; despicable. 

verb
  • To defecate. 

  • To excrete (something) through the anus. 

  • To fool or try to fool someone; to be deceitful. 

  • To annoy. 

How often have the words black tar and shit occurred in a corpus of books? (source: Google Ngram Viewer )