b is short for bag, the verb. bag is used to mean that someone is going to hook up with someone else. so when someone is trying to bag someone else, as in they are flirting or starting to make moves, one would make his/her right hand into a b (thumb straight up, fingers curled behind curled pointer finger) behind the person who is trying to bag. in addition, someone could say "b" or type it on facebook, text it, etc.
Example 1: Jack goes over to Anna and says, "Nice shirt," in a flirty way.
Aaron goes behind Jack and puts up a b with his hand.
People laugh

Example 2: On facebook, Jamie writes "wish i could've seen you today :(" on Ryan's wall.
Adrian comments on the wallpost saying "b"
by an0nnn111 June 19, 2011
10 Words related to b
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A greeting to one of your homies
What up B what been goin on.
by Curtis "The Ship" Richie March 16, 2005
The word is a derivative of Brother, was, through usage, shortened to Bro, and finally condensed to just B.
"'sup B?"
"get your ass over here B"
"Me and B are gonna book it down town"
by JennyCrane July 29, 2005
Asian Fail.
A: I failed.
B: Asian failed, white failed, or mexican failed?
A: I got a B.
B: Asian fail.
by FlipPrincess May 06, 2009
night b ♥:)ily
by shay88 August 08, 2009
The second letter in the alphabet.
A B C D E F G H I J K L M N O P Q R S T U V W X Y and Z. Now I know my A B C's. Next time wont you sing with me?
by arianne! August 16, 2010
A colloquialism one would use when referring to one of their homeboys/girls, or, more generally, anyone. Synonymous with other nicknames like "ese" and "playa."
...I'm gonna take your little Mexican friend with me, and I'm gonna kill him.

Yo, I'm Cuban B!

by Dori Grey January 18, 2011
It's a shortened version of Babe or Bitch, depending on who you're talking to and how you mean it.
Girl 1: Oh hey B, what's going?
Bitch: Not a lot Babe, wbu?

Guy 1: Wuddup B?
Babe 1: Not a lot boy.

Guy 2: Wow B you're gonna get it tonight...
Guy 3: Ya Bitch is going down!
by Nerd-Dizzle-S-Sizzle June 15, 2010

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