be enough to make a cat laugh

But, Jude, my dear, you were enough to make a cat laugh!

It was enough to make a cat laugh.

The gallery's simultaneous ten-year retrospective exhibit of Hollander's work was titled It's Enough to Make a Cat Laugh.

Londer had never given his sons anything he hadn't already used (Beel being the exception, but then the idea of Londer attempting the life of a priest was enough to make a cat laugh) and Londer didn't exactly have women lining up to keep him company.