knee-slapper
thigh-slapper

A real knee-slapper of a story, it was carried around the world.

His performance, laced with songs that he has written, manages to make suffering a knee-slapper.

He tries not to roll his eyes when he answers: "Got a knee-slapper there!"

She thought that was a real knee-slapper."

The event is designed to discover and showcase those with two qualities: an X chromosome and the ability to tell a knee-slapper.

Did we mention it's a real knee-slapper?"

He had told the knee-slapper about his great-great-grandfather's mail-order false teeth and the ornery billy goat.

And verily, it was a knee-slapper.

What a knee-slapper!

Speaking of over the top, wasn't the beheading of Ralphie Cifaretto a knee-slapper?

Roseanne's appearance on Oprah's first show was a three-hankie knee-slapper dealing with all the personal challenges one confronts on the way to the top.

A knee-slapper, that.

That must be a real knee-slapper to Mr. Clinton and Mr. Blair.

'Fooled you right and proper,' he says, laughin and shakin his head the way you do when someone tells a real knee-slapper.

Knee-slapper stuff--it doused my Kafesjian hangover.

Forty-seven percent gave the following knee-slapper the highest rating: Sherlock Holmes and Dr. Watson are going camping.

Loew rolled his eyes; Dudley Smith laughed, like he'd heard a real knee-slapper at the Elks Club smoker.

The implication - that members of the President's own party, like Richard Gephardt, will have no such political calculations on their minds if and when they consider Mr. Clinton's impeachment - is a knee-slapper.

If you ever think you're about to fall down laughing - say, when you hear that old knee-slapper about the Belgians and their extra-long moving vans - scientists may now be able to tell you why.

But the real knee-slapper was Mr. Walters's dangling from the back of the float, mocking how a black man in Texas, James Byrd Jr., was dragged to his death three months earlier.

Korn "See You on the Other Side" (Virgin/EMI) There's at least one moment on every Korn album that's either a primal confession or a unintentional knee-slapper.

Earlier this month, Mr. Saez, dressed in a steel gray suit with a hint of shine, met with Chappaqua residents at a forum at the town library and all but swept the crowd off its feet with his commanding presence lightened by his ability to tell a knee-slapper.