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It is a word without any true definition. It can be used in any situation to render another persons argument invalid.
person 1: "...so therefore my point is clearly more logical!"
person 2: "Sexwhale."
person 1: "....ok, you win."

It can also be used as an action, eg: sexwhaling, when you are in the action of disproving someones point through pure non-logic.
by Hitode October 22, 2011
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