1 definition by Room408, Nish

Top Definition
When something is expected to be breathtakingly amazingly awesome, and turns out to be tragically lame and/or mediocre.
Ken: We should go see that movie Frost/Nixon! It looks fresher than dope and crazy cool!

Ellen: I don't think we should. I would kill myself if it had the Mansfield Effect.
by Room408, Nish June 30, 2009

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