It's a word the author made up. It means, "taking a movement that was originally crazy and attempting to rehabilitate its image by downplaying its origins." I

It's a word the author made up. It means, "taking a movement that was originally crazy and attempting to rehabilitate its image by downplaying its origins." I am not sure how useful this idea is as a concept. The Libertarian party had a similar history (its original platform had something to do with keeping leaded gasoline legal...) but it doesn't matter now.