u 

1. One of the 26 letters of the western alphabet.

2. Short for "you" a rather l33t term or used by little kids under 12.

3. An extra letter that is inserted in "Proper English"

u rox!
I say old bean. That "armour" has no "colour".

u by vulpnine December 4, 2004

u 

Shortened, Internet spelling of the word "you".

I'm not sure why people feel the need to shorten this word. Come on, TWO MORE LETTERS, people!

u by zzyzx January 22, 2007

u 

Version of the word "you" used by lamers who are too lazy to type two other freakin' letters.

LOLWTF u r teh nub!!1!!11LOLOMGWTFBBQ

u by GastonRabbit June 10, 2004

u 

A letter used in slang for "you" which is comonly used to adults and youth. For fucking retards who can't be stuffed to write the three letter word.

guy1: R u a retard?
guy2: Why do u ask?
guy1: cos i think u r..
guy2: Well yes. Yes i am. r U?
guy1: getlost bitch.

u by Xx-vee June 11, 2006

U 

A "word" used by moronic teenage girls who are too lazy to type two extra letters, meaning "you".

"OMG!!!111one U R LYK, So0o0o0o0o0o0o0o0o S2PID LOLOLOLOLOLLOLOIKOLKOOOLL:L:OOL N I CNT TYOP CUZ I M A MORON KIOLOL!!!"

U by Lala September 25, 2004

u 

A slang form of the word "you" for people who don't know how to spell and have poor grammar.

U r 2 kewl 2 b 4gotten!

u by Raven May 27, 2003

u 

The mispelling of a three letter word "you", and used by lazy bums, who simply cannot write 2 extra letters because they are retarted.

I am more l337 that U are!

u by Kardo January 1, 2005