When a woman has a body like that, you know she's got nothing between her ears.
But the other side is that you live between your ears.
"They all think you've got nothing between your ears but air."
He's got all kinds of hot information between his ears.
"It's going to be increasingly difficult for one human to keep between their ears all the necessary knowledge."
And the committee, they like to say, meets between his ears.
I thought you had more between your ears than he does, though.
You put what's between your ears on a diet and you're going to lose weight.
"Well, that's what you've got between your ears, so you should feel right at home there!"
The words echoed between his ears as the wind died.