Compound of "Sarah Palin" and "Alien."
Refers to a new species which contains Sarah Palin and her followers. Palien, one time Governor of Alaska and 2008 Republican Vice Presidential candidate, exhibits bizarre and otherworldly qualities not seen in the remainder of the human race.
Paliens wear cheap fur, carry small guns, have extreme and unreasonable conservative ideologies, and are ignorant of most world affairs. If you see a Palien, watch out! They do NOT come in peace.
If Sarah Palin is elected as president in 2012, Paliens will rule the Earth, and liberals everywhere will in unison migrate to Mars (hopefully it can sustain life by then).