a knee-slapper

A hilarious joke, especially one that evokes loud and prolonged laughter. My uncle told me a real knee-slapper the other day! Do you want to hear it? I love spending time with my young niece and nephew, and they seem to think I'm the funniest person in the world. Seriously, every joke I tell is a knee-slapper to them! Ho ho, that's real knee-slapper, Tim! You're a regular comedian!

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References in periodicals archive

(How was Michael Barone overlooked?) Boy, was this a knee-slapper, punctuated by overly forced guffaws, darting glances, and seat-squirming so characteristic of those who doth protest too much.

Hillary as diversion

In other words, blame it on "Joseph's confiscatory tax policy." What a knee-slapper. This sort of thing must have passed for humor among the founding fathers of the supply-side movement as they knocked back their cocktails.

Bull pulpit: how the prosperous eighties came to be - and how we can get back there

None of the rest of us in the class considered the anecdote a knee-slapper, but we understood what he meant.

The role of humor in documentation - or - laughing 'til it bytes

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