Definition of jammed
jammed 
adjective
- mad or irritated.
I didn't do my homework and my prof got all jammed about it.
Submitted by Boo, Hanover, NH, USA, Oct 19 1997.
- under the influence of heroin, Oxycontin, or other opiates.
After shooting up, John was jammed for hours.
Submitted by Joseph Arnold, Everett, MA, USA, Nov 28 2002.
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