Repiggie
Derogatory term for a someone who is part of the extreme wing of the (US) Republican Party, especially someone who is deemed racist, irrational, uninformed, unthinking, or paranoid. Synonym: wingnut, fringenut; but Repiggie, especially when capitalized, emphasizes the Republican Party connection.
"Palin actually believes this "death panel" nonsense; she's such a Repiggie."