He's the second lefty I've ever heard use this term to describe "conservatives". The other is Chuckie. It must be a part of their secret language that they use to talk amongst themselves in left-wing circle jerks.
See, you, as someone who has dared to disagree with them, must be a "Bush voter" and a conservative. It then follows that you hate old people, and want children and the homeless to starve or die of illnesses that they are not treated for. Such a heartless person is clearly a monster, an "eater of babies". Now, STFU, while your liberal attacker goes to harvest some stem-cells from aborted fetuses, you baby eater, you.