gasser vs puzzling

gasser

noun
  • More generally, any car or truck that runs on pump gas, as opposed to diesel fuel, racing fuel, or a car with an electric motor. 

  • One who gasses, or poisons with gas. 

  • Something highly entertaining or remarkable. 

  • A kind of hot rod based on production models from the 1930s to mid-1960s, stripped of extraneous weight and jacked up using a truck beam axle to provide better weight distribution on acceleration. 

puzzling

noun
  • Time spent pondering something confusing. 

adj
  • Difficult to understand or explain; enigmatic or confusing; perplexing. 

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