Dud
From Wikipedia, the free encyclopedia
A dud is an ammunition round or explosive that fails to fire or detonate, respectively, on time or on command. Duds are still dangerous and have to be de-activated and disposed of carefully. Poorly designed devices (for example, IEDs), and small devices, have higher chances of being duds.
The variation absolute dud describes a nuclear weapon that fails to explode.
Although dud rounds have failed to function as designed, they are still dangerous, and can explode if handled. In war-torn areas, many curious children have been injured or killed from tampering with such devices. Dud fireworks should be destroyed by soaking in water. No attempts to re-light them should be made. People should keep away from dud ammunition and should call proper authorities who can safely handle and remove it.
By extension, "dud" has become a slang word for anything that doesn't work or is defective. There is also a candy called Milk Duds, named for the fact that it was impossible to get them perfectly round.
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