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A sudden rupture or bursting, as of an automobile tire.
(noun)
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The hole made by such a rupture.
(noun)
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A sudden escape of a confined gas or liquid, as from a well.
(noun)
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Slang A large party or other social affair: "Lunch was a billion-calorie blowout beside the pool” ( Vanity Fair).
(noun)
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Informal A lopsided victory or thorough defeat.
(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.