Joe Public BrE informal
John Q. Public AmE informal
average Joe AmE informal

"They want to look like they're doing what the average Joe would do," he said.

"I will never forget his kindness and the effort he made to help me, just an average Joe."

He is socially awkward and looks like an average Joe.

Many people think that the Average Joe can't drive around the world.

They'd always been average Joe or family man types.

When the show started she went on dates with "average Joes".

He's just an average Joe, but such a remarkable man.

Because the average joe probably won't understand the news any way since, as you suggest by being "average", they don't have the education.

We have a whole new lease on life with these guys at Average Joe's.

His example was how the average joe rises to the occasion of jury duty.