What does the word bumper mean?

Usage examples for bumper

  1. And then, with a shock that gripped and almost paralyzed his mind, Tom saw again the switch ahead of the pilot of the Hercules 0001. The switch was open, and at the speed the electric locomotive had attained, if she did not jump the rails, it seemed scarcely possible that she could be stopped before hitting the bumper at the end of the siding! – Tom Swift and his Electric Locomotive or, Two Miles a Minute on the Rails by Victor Appleton
  2. Robin signed to Marian, who filled a bumper of wine for himself and his guest. – Robin Hood by J. Walker McSpadden
  3. The King drained a bumper to his " Cousin Rudolf," as he was gracious- or merry- enough to call me; and I drank its fellow to the " Elphberg Red," whereat he laughed loudly. – The Prisoner of Zenda by Anthony Hope