bumper

1. A glass filled to the brim (especially as a toast) (synset 102922215)
   "we quaffed a bumper of ale"
   is a type of: drinking glass, glass - a container made of glass for holding liquids while drinking
2. A mechanical device consisting of bars at either end of a vehicle to absorb shock and prevent serious damage (synset 102921979)
   is a type of: mechanical device - mechanism consisting of a device that works on mechanical principles
   has: bumper guard - vertical bars attached to a bumper to prevent locking bumpers with another vehicle
   is a part of:

   • auto, automobile, car, machine, motorcar - a motor vehicle with four wheels; usually propelled by an internal combustion engine
   • motortruck, truck - an automotive vehicle suitable for hauling

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