A creature created in an Episode of South Park by Al Gore to get attention. He is "half man, half bear, and half pig" making him not only an improper faction, but a mathematical impossibility. ManBearPig is actually a symbol of Global Warming, in that it seems Al Gore is the only one who is positivly sure of its existance and the other characters just think he's being silly.
"I'm here today to talk to you about the single biggest threat to our planet. I'm talking of course about... ManBearPig"