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Supposedly l33t speak for a computer box. Somehow the irc abbreviation doubled the length of the word

Typically used in conjunction with r0x0rz e.g. 1 r0x0rz jur b0x0rz

The meaning has morphed into boxer shorts in a case of irc whisper down the lane.
I prefer b0x0rz to b213f5.
b0x0rz by mandingoe June 9, 2004
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primarily slang for a computer, or "box"

some missuse has skewed the definition and is sometimes used to mean "boxers" as in "boxer shorts"
Jimmy used his 'nade to explode Billy's head in Halo online. Jimmy r0x0rz Billy's b0x0rz.
b0x0rz by KarmaGhost April 27, 2004
No it means a computer ... r0x0rz my b0x0rz doesn't mean rocks my boxers, that would be retarded.
OMFG I pwn3d u ... that r0x0rz j00 lolz.
b0x0rz by yarr November 30, 2003
a computer, especially a unix (sux0rz dickz0rz) box that runs p|20n serverz
i r0x0rz j00r b0x0rz. alternate spelling: 80x0rz.
b0x0rz by mjrvodka March 22, 2003
l33tsp34k for Boxer shorts. Often used in the same sentance as r0x0r to emphasize something being awesome or arousing.
"Get lost, geek."
"D0 I R0X0RZ J00R B0X0RZ??///"
b0x0rz by Nobuyuki October 6, 2003

r0x0rz my b0x0rz

Used when something pleases you, very much. Basically implying that it rocked your boxers (Underwear). Which technically doesn't make much sense, but hey, now a days, not much does.
"This game r0x0rz my b0x0rz!"
r0x0rz my b0x0rz by Felicia January 31, 2003

r0x0rz j00r b0x0rz 

leeet (1337) speak. usually thought of as "rocks your boxers" but in fact b0x0rz means box, as in computer. So,
r0x0rz = rocks
j00r = your
b0x0rz = computer
positive comment, used to show excitement. Can also be used as 'r0x0rz my b0x0rz'
1337: i just pwned teh nooblars
h4x0r: that r0x0rz my b0x0rz
1337: rofls!!!111111eleventyone
r0x0rz j00r b0x0rz by [d-_-b] September 16, 2005
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