0It's slang. Often in competitions such as sports (or, apparently in this case, Starcraft), the victor will taunt his opponent by exclaiming that he 'owned' him. It typically means that he beat, outshined, or embarrassed his opponent in very dramatic fashion.
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00It's mainly a slang gamers on the internet use. One of the many words that have evolved in meaning.12blockquote10I wouldn't say it's used mainly in a video game context. I hear it used in all types of competition.02br