Top Definition
When a bullheaded person is ill-trained, in charge, and singlemindedly opposes a large team of intelligent dissenters, and this stubborn decision causes severe loss, that is the J.R. effect

Usage note: The J.R. effect is often preceeded by what is known as the chewbacca defense.
Everyone told him not to heat the lava lamp on the stove, but he explained the model of the chemical structure of the subatomic particles and the flashpoint reaction -- we don't know what the fuck he was talking about. Anyway, now he's dead with a shard of glass through his heart as a result of the J.R. effect.
by Coder February 08, 2005
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