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nice way of saying 'yo'. l33t sp34k.
j0 j00 h4x0r. \/\/hU+ Up?
j0 by Zeke May 9, 2003
Words you can keep
Synonym of "yo" in 'Haxor' speak.
j0, f00.
j0 by Dogbert May 6, 2003
Related Words
j00 j00b j00r j00z j0 j00k J00NGREENS j0r j0 m0m4 j0 mama
the leet verson of "yo moma", except, LEET.
Raz0r->THE HELL!?
Raz0r->HOW'D YOU JUST KILL ME!!
1337/\/|_||8P\/\//\/3R-> j0 m0m4 d1d
Raz0r->THE HELL DOES THAT MEAN!?
j0 m0m4 by TOFLMAN August 13, 2004
A wannabe hardcore style of saying "yo mama" typically used on lame "yo mama" jokes.
j0 mama so fat she's almost as fat as me!
j0 mama by Denny Tang February 10, 2003
A retarded, dying woman.

Can also be used in place of retarded.
Megan: I hit my head on the fridge.
Ally: You're so j0j0!
j0j0 by Dripee August 9, 2006
Slang in "1337 speak", which is a language used by people chatting online.
The etymoligical roots of j00 are quite unclear, yet it seems that it is derived from accents of the english that are found humourous by some and made into a joke which soon developed into norm. Such is the history of many internet slangs.

-- GRAMMATICAL USAGE --

j00 should NEVER be used as a subject, only as an object or within a prepositional phrase. If needed to be used as a subject, it should ALWAYS be replaced with "you" or another 1337 speak equivilant.
(ie. "Are j00 there?" is incorrect. "I pwn j00" is correct.)

j00 is often used in conjuction with mathematical signs of comparism, such as "=" (equals), ">" (greater than), or "<" (less than). Again, in these cases, j00 is the object and is always on the right side of the sign. There are some cases where it is okay to do otherwise, as this rule is somewhat lenient. ">" is most frequently used, and is read as "owns"
(ie "Rockets > j00" - read as "rockets pwn you", "j00 = stupid" - special case)
he obliterated j00
giant sticks of dynomite > j00
j00 by Justin Le May 14, 2005
j00b by Intention May 24, 2003
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West Midlands slang word for rockers, bikers, greasers etc. In the late 1980s it was used by the UK music press to refer to a specific scene centered around the bands Pop Will Eat Itself and Crazyhead. The term never found favour with readers of 'the inkies' (Sounds, Melody Maker and the still extant NME) and was soon dropped. Now often used in predominantly working-class areas of the midlands and the north to mean someone who listens to rock-derived music and/or dresses in a manner that suggests they affiliate themselves with rock music of some kind.
Some grebo passed with Sabbath playing on his stereo.
The Poppies are at no. 17? God, a grebo band in the charts!
They're playing nu-metal now, bloody grebos!
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