1. a horizontal bar or structure at the front or back of a vehicle designed to absorb impact in a collision
2. something that cushions or protects against impact
3. a cup or glass filled to the brim, especially with an alcoholic drink
Usage: informal

1. unusually large, abundant, or successful

Examples

• The car’s front bumper was damaged in the accident.
• She installed rubber bumpers on the cabinet doors to prevent slamming.
• The farmers celebrated their bumper crop of corn this year.
• He raised a bumper of champagne to toast the newlyweds.
• The company reported bumper profits for the third quarter.
• Traffic was bumper-to-bumper on the highway during rush hour.
• The boat had bumpers along its sides to protect it from the dock.