Top Definition
Term for someone who is open-minded enough to adopt an untenable theory (often some kind of crackpot conspiracy), yet close-minded enough to reject all criticism of that theory. The combination of echoing empty space and solid, impenetrable plastic makes rational communication impossible.
I tell you, this Illinois lottery result proves that Obama is the antichrist. You're wasting your time arguing with me, I have a plastic empty head.
by Face of a Clam August 12, 2010

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