Mid 90s urban culture terminology for defeating another person in any sort of competition, whether it be gaming, boxing, killing, etc.
N.W.A. Song "Straight Outta Compton" -

"Me and you can go toe to toe, no maybe

I'm knockin' niggaz out the box daily"

Ex. 2-

Man, I can kill you at Mortal Kombat II.

Oh yeah, I'll knock you out the box, bitch!
by gregatron5000 June 28, 2009
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It is used frequently in the IT industry. It means that something is part of the product. We do not need to do any customizations to achieve that.
Out of the box, we provide a built-in search engine.

In addition to the out-of-the-box functionality, virtually any repository can be made searchable through the creation of Content Services. All items in the Knowledge Directory can be
searchable.
by Terry Wang December 7, 2006
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A ready-made software, hardware, or combination package that meets a need that would otherwise require a special development effort.
J2SE doesn't support whois protocol out of the box
by Nguyen Hoang Khanh April 2, 2008
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To describe nonconformal, creative thinking.
Some innovative way or breakthrough.
To think out of the box
by Nguyen Hoang Khanh April 2, 2008
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