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1.
BD
BIG DICK
Holy s*** bro, that guys packin' a BD!
by Chad Broington April 01, 2009
 
2.
BD
Baby Daddy: Reference to the father of one's child. Term is typically used by unmarried females who are no longer in a relationship with the father of their child.
Michelle: Are you still with Jason?

Lisa: Naw girl, we broke up before the baby was born. That's just my BD. Nothing more.
by Badd Chick Alert August 24, 2010
 
3.
BD
Black Disciple, gang that started in Chicago and has spread to othe major cities in the United States including Baltimore, and Miluawakee. The Black Disciples are a part of the bigger alliance of gangs known as the folk nation although there is common violence between the alliance.
Folknem stay poled up incase they catch a gd lackin. Fuck 7-4, L's Doin BD till' I drop 2-4 till the world blow bítch. RIP king Dave
by 2-4 Til' death January 05, 2014
 
4.
bd
Abbreviation for "baby daddy", mostly used by bm's or baby mamas that are not with their kid's father.
That no good bd of mine doesn't ever take care of his son.
by Kween Ki August 30, 2006
 
5.
BD
When you are balls deep in someone.
Yo, I was BD in Sage's mom last night.
by Jake Jonson August 21, 2005
 
6.
an expression used in text messaging to represent a "thumbs up". The b as the right hand and the d being the left.
I get to see you today b d
by AnnaBananabd January 13, 2009
 
7.
bd
gand relation in chicago. Black deciple. Colors are usally blue and red, but you might see some white or blue.
gd's, bd's, vicelords, stones
by Michael King March 08, 2004