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Ironic and somber-faced jest used to temporarily make light of a serious matter, situation, or topic, in order to help everyone involved to maintain his sanity and composure about it.
Concerned citizen #1: Well, if the nuke-plant does blow its top and blankets everything for 1000 square miles with glowing radioactive fallout, at least it'll save on batteries --- we won't need flashlights to see at night.
Concerned citizen #2: Yup, that thought's a case of grim grins, all right!
by QuacksO December 03, 2011
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