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A person whose intelligence is impaired either permanently or temporarily. The latter condition is most often associated with unexpectedly encountering other road traffic whilst sitting in the driving seat of a motor vehicle. See also halfwit moron cretin imbecile boy racer idiot muppet teenager
"No of course I'm not upset that you pulled out of a side road right in front of me, thereby endangering myself and my entire family. Think nothing of it, Prune Brain!"
by Robo283 April 26, 2008
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