shake in one's shoes
shake in one's boots
quake in one's boots
quake in one's shoes

"A lot of my neighbors are shaking in their boots."

It's not that the rest of the world is shaking in their boots.

So what else has 20 million of us shaking in our boots?

You can see why I should have been shaking in my boots.

I guessed what had happened, and despite a clear conscience began shaking in my boots.

But the leaders - they're shaking in their boots all right, and good for them.

"If it hadn't been for those two thieves, I would probably be shaking in my boots right now."

The Yankees can go, and we need not shake in our boots.

A lot of teams are shaking in their boots already.

He's the one who'll really have reason to be shaking in his boots.