Impoverished white American whom identifies himself as a "Republican" not because of wealth or fiscal esponsibilty, but because of ignorance and/or racism. (They do not necessarily live in an actual trailer park) Some identify themselves as "Tea Party Patiots."
Also see: Republibilly
Trailer Park Republicans are:
Rush Limbaugh, glenn beck, fans. People who watch only FOX News (aka: "The Real News")