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crack of doom
1. The Christian Day of Judgment, when God assigns an eternal fate to all individual humans; a sound or signal heralding that day. You may have been acquitted of your crimes by a court of law, but you will have to face the punishment for them at the crack of doom. The sky blackened and lightning flashed violently across the sky, with thunder booming like a crack of doom.
2. By extension, the apocalypse or end of the world, or a signal thereof. Many feared that the Cold War could at any time escalate to nuclear warfare, bringing about the crack of doom.
day of doom
1. The end of the world; judgment day. Every year, another nut job comes on the air, talking about how we're coming close to the day of doom and that we must all repent our sins.
2. By extension, any moment characterized by catastrophe, disaster, or complete ruination. The day of doom in my life was the day my daughter was killed by a drunk driver. It was a day of doom on Wall Street, as the property bubble burst and the economy plummeted to historic lows.
merchant of doom
A person who always focuses on the potential negative outcomes of a situation. I refuse to watch the evening news anymore because the reporters have all become merchants of doom.
prophet of doom
A person who always warns others about possible negative consequences of decisions or actions. Don't tell Rodney about your new plan—he's such a prophet of doom that he'll completely kill your motivation.
doom someone or something to something
to destine someone or something to something unpleasant. The judgment doomed her to a life in prison. Your insistence on including that rigid clause doomed the contract to failure.
See also: doom
gloom and doomalso doom and gloom
the feeling that a situation is bad and is not likely to improve There's been so much gloom and doom here, I think we should try to provide a smile.
doom and gloom
the feeling that a situation is bad and is not likely to improve Come on, it's not all doom and gloom, if we make a real effort we could still win.
a merchant of doom(informal)
someone who is always saying that bad things are going to happen With exports rising and unemployment falling, the merchants of doom are having to revise their economic predictions.
a prophet of doom
someone who always expects bad things to happen My father is convinced that this venture will fail, but then he's always been a prophet of doom.