Someone who is normally a U.S. Democrat supporter, but supported John McCain over Barack Obama in the 2008 presidential election.
Opposite of a BroPublican- a normally a U.S. Republican supporter who supported Barack Obama in the 2008 presidential election.
Guy 1: I really hope McCain wins the election.
Guy 2: I didn't know you were a Republican.
Guy 1: I'm not, I'm a McDemocrat