Off the top of my head:
1. "Reagan Democrats"
Legitimate concept, Reagan did in fact win in two landslides.
not in the context the media uses it, which is idiotic short hand for swing voters and/or working class whites. my favorite thing is when it's used for west pennsylvania democrats...
Exactly. It has a certain historical context, but that has virtually zero relevance to how it's used today. Thus it's a useless and idiotic term that needs to be retired.
Oh and the point about western Pennsylvania is the perfect example of how it's such a totally f**king stupid term: