"Now you're using the old noggin, Petey boy."

Creep figured he was using the old noggin and it struck me he was pretty smart.

I wasn't working that day or I'd have filed it away in the old noggin," he said with a tap to his temple.

"How's the old noggin ?"

Not much circulating in the old noggin eh?

You'll use the old noggin.

Needed to clear the old noggin, if you get my drift.

You use the old noggin!

"That's using the old noggin, Hippo."

Joe added, "You sure were using your old noggin."