A lame magazine is a worthless magazine. I think lame was used by Dickens in A Christmas Carol to describe Tiny Tim. So in the disability community it is equated with not only humans but the entire pity parade attitudes that ensued to raise charity money for the lame, the crippled, those who industry refused to hire. My work is not based much on language but there are other scholars who would disagree with your point here.
Marta
And one more thing. It was common practice to shoot lame horses as they were of no use to human beings anymore. marta
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