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2 definitions by J. Harvey

 
1.
One-word response placed after a quote on a message board as an affirmation of the author's agreement with the quoted person's view or opinion. Commonly used on Fark.com.
Some guy: "Nice to see that the human race has advanced to the point of using robots to poke things with a stick."

Another guy (after quoting above): This.
by J. Harvey September 17, 2007
 
2.
A pejorative term used to refer to a Microsoft X-Box or X-Box 360. Typically used by fans of Sony or Nintendo consoles, PC games, or people put off by the X-Box's tendency to crash. Pronounced "sucks box".
"My friend's suXbox just crashed again."
by J. Harvey December 04, 2006