1. (initialism) .  '''Fill or kill''' - A type of stock market or financial derivative order, signifying that the order is to be presented for execution, and if not executed ("filled") immediately—is to be cancelled.
  2. (initialism) .  '''Feeling of Knowing''' - The sense that one has the answer to a question without stating such. Set forth by psychological experiments done by Reder.

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This entry was last updated on RefTopia from its source on 3/20/2012.