1. A mechanical device consisting of bars at either end of a vehicle to absorb shock and prevent serious damage
   "The car's bumper was dented in the minor collision"
    
2. A glass filled to the brim (especially as a toast)
   "we quaffed a bumper of ale"

1. Producing in abundance
   "This year's bumper crop of apples exceeded all expectations";
   - bountiful, plentiful

Derived forms: bumpers

See also: fruitful

Type of: drinking glass, glass, mechanical device

Part of: auto [informal], autocar [archaic], automobile [N. Amer], car, lorry [Brit], motor [Brit, informal], motorcar, motortruck [N. Amer], truck, wheel [informal], whip [US, informal]

Encyclopedia: Bumper