My stupid grin quickly faded, and I hurried after her.

Even death couldn't wipe that stupid grin off your face.

I did wonder a bit about the head, since it had turned out with this stupid grin on its face.

Most of them noticed the stupid grins from Cable and company.

Everyone had the same stupid grin on their face.

And the stupid grin seemed to want to stay where it was.

This guy gives 'em a stupid grin, like he has no idea who they are.

"Why does it have that stupid grin on its face?"

But I managed to keep a stupid grin on my face.

"Always happy to help the local police," he said with a stupid grin.