They had kept each other pinned down for two days.

I was all over her then, trying to pin down the order of events.

For one thing, he does not like to be pinned down.

What exactly happened in her life, he could never pin down.

Out here they were in the open and pinned down.

First, they had to pin down exactly what their mother's needs were.

It took him a little while to pin down the reason for the difference.

Just what that certain idea is may never be pinned down.

That was what he had been trying to pin down.

It looked like the bad guys were pretty well pinned down.