An in-game recording of a video game, pretty much exclusively PC games. They are often taken of competitive matches in games like Counter-Strike and Call of Duty.

Demos can only be played back within the game, however they can often be exported into actual video clips for use in frag videos (or "montages").

Though time-consuming, many games allow you to do all sorts of things with demos; search YouTube for demo recording tutorials to learn more.
Crap, I forgot to record a demo of that game
by estrale November 3, 2010
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a person, usually a female, used for sex, money, or other things by people (mostly dudes).
Ever since Heather played me, she's nothing but demo for weed and money.
by Brianna B. November 8, 2004
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To demolish something ... Often during the process of eating...
Let's demo on a half-bird ... The act of eating half a chicken with ones chums.
by Linnie and Brad I.D.M. August 5, 2003
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The act of demonstrating a product.

Keeping a captive audience while "demoing" shows the extent of the presenters personality
by Sas76 February 2, 2006
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A basic recording of an aspiring band. Usually cheaply and easily put together. Often used to get gigs at venues. Also used to develop a following at local level.
"Heres a demo tape of my group"

"Send us a demo and we'll get you guys a gig"
by angertrain July 18, 2008
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Sweet yet a bitch if need be. Very cute with huge amounts of energy. One who gets wrapped up in her aura will be forever pleased and happy
Demoness will wear you out with all that energy but you better treat her right she can be a bad bitch.
by Demoness 40 January 20, 2014
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Translation of the word "but" or "although" in japanese pop culture. Often used in anime.
I used to think 'demo' was a preview of an album, but (demo) now I know it also means but (demo).
by Kelsey D May 27, 2008
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