From a good comment in Scalzi's blog. bcholmes pointed at it elsenet.
Xopher on September 7, 2011 - 4:36 pmScalzi's original post is worth reading too. It's entitled "Shut Up and Listen," which I think is excellent advice for many situations. (In this particular situation, it's being applied to conversations about oppression and privilege.)
John, I learned the word ‘logomachy’ to describe that kind of thing: trying to win an argument by controlling the terms of the argument, or by outlawing the terms needed by the other side(s) to make their points.
It’s a tactic some employ consciously, and others without quite realizing it.
Bonus word 2 (from the blog post): "wealthsplaining"
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