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4.
xen
One who defeats everyone in both Return to Castle Wolfenstein and Aliens Versus Predator 2. Derived from a player's name, said to be the best in the world.
The "xen" killed every member of the opposing team with one panzerfaust shot.
by Anonymous October 25, 2003
 
1.
xen
The alien planet in Half-Life.
"I just got to Xen; how do I kill that giant headcrab?"
by 1337W422102 January 27, 2005
 
2.
Xen
A man who contains sexiness, and has big fingers, or shoes. In some cases, he contains both.
"OMG,Xen i want you in bed!"
by lpwizard08 December 18, 2005
 
3.
xen
The Generation X spelling of zen.
It's cool to be xen.
by super-anon July 31, 2008