People who espouse the virtue of the free market while living off government largesse. Examples of republikeynes include the farmers who vote for republicans to lower taxes while receiving hundreds of billions of dollars in farm subsidies.
The term is a portmanteau of republican and keynes, the economist who advocated higher government spending to get out of a recession.
Did you hear that the republicans want to give a quarter trillion dollars to big farms? Business as usual for the republikeynes.