If she sat up suddenly, she'd bump her head on them.

Back on the boat, I made you bump your head a lot.

A struggle to get clear - I did bump my head.

The king who was riding bumped his head as a result.

"The first thing I heard was that he fell out of a chair and bumped his head," she said.

They're not big inside and you're bumping your head constantly.

How many times had he bumped his head before learning that lesson?

"Must have bumped her head," said one of the others.

He tried to brush it off but bumped his head again.

He's going to be moving fast, and I don't want to bump heads.