Bumper/ˈbʌmpər/ Definition 1 of 3Pro Tip 1/3Automotive Context Often mentioned in car accidents or features, regarding vehicle safety. The driver walked away unharmed thanks to the car's sturdy bumper. Pro Tip 2/3Collision Absorption 'Bumper' implies protection, minimizing harm during minor collisions. Kids often play bumper cars because the bumpers soften the collisions. Pro Tip 3/3Car Descriptions Used to describe parts in car reviews, ads, and repair discussions. The advertisement boasted about the car's chromed front bumper.