A word coined by former Silicon Alley Reporter columnist Clay Shirky to describe the free time that people have on their hands to engage in collaborative activities, specially as applies to web 2.0.
Wikipedia is an example of wide-scale deployment of cognitive surplus.

"You know where the time comes from. It comes from the cognitive surplus that you've been masking for 50 years".
by Arunabh Das Two May 25, 2008
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the amount of goods and services that a country exports, minus the goods and services that it imports *in a calendar year*. In 1999 Japan exported much more than it imported, so it had a trade surplus. The same year, the United States imported more than it exported, and therefore had a large trade deficit.

While Japan had a trade surplus and the USA had a trade deficit, both had something called a trade balance, which was negative for the USA and positive for Japan.

A country can have an overall trade deficit (like the USA in all years since 1980) and still have trade surpluses with individual countries (e.g., the USA occasionally has trade surpluses with Brazil).
Usually, when a country runs a trade surplus it tends to export the excess foreign currency back to the deficit country as portfolio investment. In this way, the foreign currency retains its value.
by Abu Yahya February 14, 2009
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The surplus warrior is someone who goes out to a military surplus store and buys military uniforms, plate carriers, surplus helmets, and all the other tacticool gear. The pretend that they're in the military and many of them think that they could be in the special forces despite never exercising.
Do you see that surplus warrior over there with the plate carrier and army uniform?
by heckingshekels May 28, 2018
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The phrase “behavioral surplus” is central to the subject of Shoshana Zuboff’s 2019 book “The Age of Surveillance Capitalism.” The author is a professor emerita at the Harvard Business School. Here is Zuboff’s description of the term in the book’s Introduction:

“Surveillance capitalism unilaterally claims human experience as free raw material for translation into behavioral data. Although some of these data are applied to product or service improvement, the rest are declared as proprietary ‘behavioral surplus,’ fed into advanced manufacturing processes known as ‘machine intelligence,’ and fabricated into ‘prediction products’ that anticipate what you will do now, sooner and later. Finally, these prediction products are traded in a new kind of marketplace for behavioral predictions that I call ‘behavioral futures markets.’” (Terms highlighted with single quote marks are italicized in the original.)

Because of the way the term is discussed in the book it’s likely it originated early this century in the bowels of Google as the company searched for a way to reliably monetize their search engine. They found one.
“The shift of economies of scope defines a new set of aims: behavioral surplus must be vast, but it must also be varied.” ibid., p 199
by ex PFC Chuck April 21, 2021
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Acquiring copious amounts of women that can be called upon at any time, for booty time.
Connor has so many girls he has a booty surplus!
by Mr Meowbert September 8, 2012
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Eating a fuck ton of calories to maximize gains
Brad ate five burgers as he is in a "Caloric Surplus"
by 30000caloriesaday November 26, 2021
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A large group of racist individuals, whom may or may not include lifted and squatted pickups with maga stickers
I though I was far away from the maga rally, but I found a Louisiana Surplus chugging bud light on the side of the highway.
by The Clyde-a-matron April 13, 2023
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