blotter vs purple haze

blotter

noun
  • A portion of blotter acid. 

  • A register of the related events made in the form of the list of times and brief descriptions. 

  • A piece of blotting paper in a pad as a piece of desk furniture. 

  • A daily register of arrests and other events in a police station. 

purple haze

noun
  • lysergic acid diethylamide (LSD) when used as a recreational drug 

  • One of numerous strains of cannabis known for their high THC content and recognizable by the color of their leaves, which vary from solid purple to flecked violet. 

How often have the words blotter and purple haze occurred in a corpus of books? (source: Google Ngram Viewer )