bumper
1. [ adjective ] extraordinarily abundant
Examples:

"a bumper crop"

Related terms: abundant
2. [ noun ] (food) a glass filled to the brim (especially as a toast)
Examples:

"we quaffed a bumper of ale"

Related terms: glass
3. [ noun ] a mechanical device consisting of bars at either end of vehicle absorb shock and prevent damage
Related terms: mechanical_device car truck bumper_guard
Similar spelling:   Bumpers