Dictionary.net

1. [generalisation of "Honeywell Brain Damage" (HBD), atheoretical disease invented to explain certain uttercretinisms in Honeywell Multics] Obviously wrong; cretinous;demented.There is an implication that the person responsible must havesuffered brain damage, because he should have known better.Calling something brain-damaged is really bad; it also impliesit is unusable, and that its failure to work is due to poordesign rather than some accident. "Only six monocasecharacters per file name? Now *that's* brain-damaged!"2. [especially in the Mac world] May refer to freedemonstration software that has been deliberately crippled insome way so as not to compete with the commercial product itis intended to sell. Synonym crippleware.