01 In games, a zero; a score or record of naught; -- so named in allusion to the egglike outline of the zero sign 0. Called also duck egg.
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1.
In games, a zero; a score or record of naught; -- so named in allusion to the egglike outline of the zero sign 0. Called also duck egg.[Slang] Also: duck egg
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2.
A bump on the skin caused by a blow, especially one on the head.