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1.) The accidental firing of a weapon. It usually occurs when firearms are given to idiots, small children, the mentally retarded, or Marines. Can result in bleeding wounds, severe maiming, and death.

2.) See "premature ejaculation". (Also prevalent in the Marine Corps)
When the DI handed Private Jimmy his M16, Jimmy dropped it and it went off. Jimmy just had a negligent discharge.

After Jimmy negligently discharged into his DI's asshole, he was discharged from the Corps.
by Vasily Andropov December 12, 2013
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