Top Definition
An individual whose reaction to alcoholic stimuli worsens dramatically and often inexplicably at a certain level of alcohol intake.
"What a fucking diode, he was fine ten minutes ago."
by chenghis khan January 14, 2007
An electrical component that allows electricity to flow only one way. Used in the rectifier bridge of an alternator. Also used as L.E.D. (light emitting diode) lights.
Dumbass: "The guys at the parts store tested my alternator and said that the diodes are bad. How much to replace them?"

Guy at alternator rebuilders shop: "Those rank amatures don't know what they're talking about, and neither do you, you dumb ass."
by wanna-be-Rossi September 21, 2005
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