Deconstruction.

NOUN:
A philosophical movement and theory of literary criticism that questions traditional assumptions about certainty, identity, and truth; asserts that words can only refer to other words; and attempts to demonstrate how statements about any text subvert their own meanings: "In deconstruction, the critic claims there is no meaning to be found in the actual text, but only in the various, often mutually irreconcilable, "virtual texts" constructed by readers in their search for meaning." (Rebecca Goldstein).
--American Heritage Dictionary of the English Language, Fourth Edition. © 2000 by Houghton Mifflin Company.

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Deconstruction ... insists not that truth is illusory but that it is institutional.
--Terry Eagleton. "Frere Jacques: The Politics of Deconstruction," ch. 6, Against the Grain

I would say that deconstruction is affirmation rather than questioning, in a sense which is not positive: I would distinguish between the positive, or positions, and affirmations. I think that deconstruction is affirmative rather than questioning: this affirmation goes through some radical questioning, but it is not questioning in the field of analysis.
--Jacques Derrida. Interview, 1985, Criticism in Society, ed. Imre Salusinski (1987).

Deconstruction glorifies the critic, humiliates the author, and makes the reader wonder why he bothered.
--Mason Cooley. City Aphorisms, Ninth Selection, New York (1992).

Deconstruction: peering suspiciously at the text, I wait for it to make a slip and betray itself.
--Mason Cooley. City Aphorisms, Sixth Selection, New York (1989).

The fall into the abyss of deconstruction inspires us with as much pleasure as fear. We are intoxicated with the prospect of never hitting bottom.
--Gayatri Chakravorty Spivak. Of Grammatology, translator's preface by Jacques Derrida (1967).

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What deconstruction is:
http://www.sou.edu/English/Hedges/Sodashop/RCenter/Theory/Howto/decon.htm
Where it came from:
http://prelectur.stanford.edu/lecturers/derrida/deconstruction.html

Everything above can be found on Google or Bartleby. This post was inspired by an email to the Shaksper mailing list from a Gabriel Egan. It can be found at the bottom of this page.

I won't bore you further. At least not today.