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jack-in-a-box
Variant of jack-in-the-box
noun pl. jack-in-the-boxes
a toy consisting of a box from which a little figure on a spring jumps up when the lid is lifted
also jack-in-a-box
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
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