big shot informal
big cheese informal

Maybe you'd like to know who the big shot is.

So they can put in a new big shot an' start all over again.

"They come in here my first night and make me feel like a big shot."

I wanted to win every single point with a big shot.

But it must have been a big shot, because on.

All that means anything to you is playing the big shot.

"A big shot like him would have more than one girl."

Some big shot from Washington came here and talked to her.

He'll be out there when we need a big shot.

During the next two hours, he considered himself to be a big shot, at last.