The flight was overbooked, and I was the first to 'be bumped'. [=my seat on the flight was the first seat to be given to someone else]
His career hit a 'bump' in the road. = His career hit a road 'bump'. [=something happened that slowed the progress of his career]
The airplane landed 'with a bump'. [=the airplane went up again and then down when it hit the ground]
(..) and l tried to stop them. The boat was too fast, so we swam out in the ocean... He couldn't stop them. Then Nemo's dad, he swims out to the ocean and they bump into three sharks. He scares them away by blowing them up. - Amazing. - And then dives thousands of feet... Down into the dark. lt's wicked (..)2003 Finding Nemo