In other words, most of the story happens under the hero's hat.

Luke, stay with the project and keep all of this under your hat.

He said you would tell me to keep it under my hat.

I hope you're going to keep all this under your hat, Chaplain.

She'll have to go through life with a battery under her hat.

But keep it under your hat until it's certain, will you?

His mother says, "No, you should have put it under your hat."

So I can tell you to keep it under your hat.

"Keep the whole thing under your hat if you can."

He had dark hair under his black hat, and a long red beard.