1. She knocked the bottom out of our argument.

2. The bad news knocked the bottom out of market prices.

3. When the next speaker produced all those facts, he knocked the bottom out of my arguments.

4. The rise in mortgage rates really knocked the bottom out of the housing market.

5. A recession would knock the bottom out of corporate profits.

6. Knock the bottom out of this box, please.

7. His theory seemed to knock the bottom out of the existing hypothesis.

8. A sudden drop in supplies of certain chemicals could knock the bottom out of the engineering industry.