What does Big D Bro mean?

Big D Bro meaning in Urban Dictionary

African-American men with an extremely large male weiner.They are usually based in the sleep of Bad Bitches plus don't simply take no for an answerRules:1.Must have actually swag,don't follow wack trends2.Must have actually a large D3.Must be black4.One of the Big D bros must ravel a great deal to distribute the wealth5.All-around greatness