Top Definition
Something, someone, or nothing at all......that is all at once everything, something, and nothing all at once and not at all.

-----as manifested by your own mind.
Man 1:"look at that fosterian"
Man 2:"what fosterian"
Man 1:"that Fosterian"
Man 2:"Oh you mean those fosterians"
Man 1:"What Fosterians"
by ghhgh June 06, 2009

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