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1.
One who pwns... owner->ownzor->pwnzor->pwnz0r
i r teh l33t pwnz0r!
by Goast February 23, 2003
 
2.
1: Someone who pwns.
2: Someone who uses firefox (or releated).
3: Someone who uses Linux.
1: I AM TEH PWNZ0R! *BOOM!*
2: You use IE? USE FIREFOX!
3: You use Windows? USE LINUX! (It's free!)
by Racecar56 February 28, 2009
 
3.
To pwnz0r: to absolutely pwn something. To completely and undoubtedly denied someone/something.
I'm going to pwnz0r you tonight!!!
by meh March 30, 2003