bumper vs splashboard

bumper

noun
  • Parts at the front and back of a vehicle which are meant to absorb the impact of a collision; fender. 

  • Any mechanical device used to absorb an impact, soften a collision, or protect against impact. 

  • A bouncer. 

  • A short ditty or jingle used to separate a show from the advertisements. 

  • A side wall of a pool table. 

  • Someone or something that bumps. 

  • Anything large or successful. 

  • An extra musician (not notated in the score) who assists the principal French horn by playing less-exposed passages, so that the principal can save their 'lip' for difficult solos. Also applied to other sections of the orchestra. 

  • A woman's posterior, particularly one that is considered full and desirable. 

  • An object on a playfield that applies force to the pinball when hit, often giving a minor increase in score. 

  • A cigarette butt. 

  • A cylindrical object used (as a substitute for birds) to train dogs to retrieve. 

adj
  • Large; (as if) filled to the bumpers at the top of a silo. 

splashboard

noun
  • A guard towards the front of a horse-drawn vehicle, to prevent splashing by mud or water from the road. 

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