odometer vs tattler

odometer

noun
  • An instrument, usually embedded within the speedometer of a vehicle, that measures the distance the vehicle has traveled since production. 

  • A wheel used by surveyors, which registers distance traveled. 

tattler

noun
  • A device fitted to a vehicle to measure mileage etc. 

  • Either of two similar bird species in the shorebird genus Heteroscelus (Tringa in some taxonomies). 

  • One who tattles (notifies authorities of illicit behavior) or is inclined to do so; a tattletale. 

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