If somebody knocked a hole in the wall it'd get noticed.

Now there's a book that might knock a hole in a library wall or two.

Or knock a hole in a castle wall, for that matter.

But the extra expense had knocked a large hole in my budget.

Palestinian militants had knocked a hole in the wall, he said.

Did you see the way I knocked a hole into that barge?

"And we'll have to knock a hole in the windshield to see how to drive to camp."

I had them so bad I knocked a hole in the wall with my head.

He could have knocked a hole through the back wall if he wanted to.

It's why you can knock a hole in a man's head, take chunk of brain out, and not damage thinking much.