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Use "knee-slappers" in a sentence
"Michele Bachmann declares that the Hurricane Irene was a message from a God outraged over runaway government spending a joke, she later insists: I suppose along the lines of some of her other knee-slappers, like blaming the swine flu outbreak on the election of a Democratic president."
"Well, here are several knee-slappers you might enjoy."
"Normally, such self-indulgence would not merit notice, but in the process, he drops a few entertaining knee-slappers."