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Wild behavior common with cats late at night who will run from room to room and jump on furniture, often yowling, for no explicable reason.
Angela: What's wrong with Mr. Mittens? Last night he spent an hour racing through my apartment meowing like a banshee.

William: I wouldn't worry, it's probably just the midnight crazies: typical weird feline behavior.
by Medicine Show November 16, 2011
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