He laughed feebly, and tried to imitate her.

The bloodstained killer laughed feebly as police grabbed him.

He falls sprawling across the bed, laughing feebly.

The young man laughed feebly.

I spread my hands, laughing feebly in frustration.

He laughed feebly, like he was dying.

She laughed feebly, and said, "I don't want you to go.

Eric laughed feebly; nevertheless the sound of it seemed to give him courage.

Neville laughed feebly at his unintended funny, but really this was no laughter matter.

And, repeating this several times, she fell to laughing feebly.