bucket bong vs hookah

bucket bong

noun
  • A type of bong for smoking marijuana, usually consisting of a bucket or similar device for holding water, a large bottle with its bottom cut off, and a socket for holding the marijuana in the cap. 

hookah

noun
  • A pipe with a long flexible tube that draws the smoke through water, traditionally used for smoking tobacco, which is often flavored. 

  • A tank-less surface air compressor pump and umbilical piping system that supplies air to a diving mask 

How often have the words bucket bong and hookah occurred in a corpus of books? (source: Google Ngram Viewer )