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
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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
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Two letters that can mean big dick. But also looks like a person smiling.
Girl 1: "Hey you see his BD?"
Girl 2: "Yeah, he has a nice smile."
by digbickkid November 06, 2019
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Abriviation for bondage and disipline
Sarah told me she went to Mark's house and he made sure she had lots of BD.
by Kat May 13, 2004
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