Texas tea vs petrol

Texas tea

noun
  • Purple drank. 

  • A video slot machine that has a Texas oil industry theme. 

  • A variation of Long Island Iced Tea, a highly potent mixed drink made of a variety of alcoholic ingredients, without any actual iced tea. 

  • A mixture of drugs (pancuronium bromide, potassium chloride, and sodium thiopental) used to execute a person by lethal injection. 

  • Marijuana. 

  • Strong coffee. 

  • Crude oil. 

  • Diluted fertilizer filtered through manure. 

  • Motor oil. 

  • Iced tea. 

petrol

noun
  • petroleum, a fluid consisting of a mixture of refined petroleum hydrocarbons, primarily consisting of octane, commonly used as a motor fuel. 

  • A motor vehicle powered by petrol (as opposed to diesel). 

How often have the words Texas tea and petrol occurred in a corpus of books? (source: Google Ngram Viewer )