When I hear/see terms like this, I assume it's being used to refer to ultra-conservative, asshole republicans, not republicans in general. Not all republicans are bad, but there are those out there who support really stupid policies and say really stupid, disrespectful, and ignorant things. It's not a term I would use myself, but when someone else uses it, I assume they are referring to the worst republicans.
The bugle sounds as the charge begins
But on this battlefield no one wins
But on this battlefield no one wins
- Iron Maiden, The Trooper