L-B-C stands for Long Beach California. It originally stood for Long Beach Crips, but as rap grew more popular, the acronym took on a more general meaning.
This Acronym can also stand for Long Beach Compton which describes people who were living on the boarder of both communities. Because Dre is from Compton, this acronym works in this song.
To help improve the meaning of these lyrics, visit "Gin and Juice" by Snoop Dogg Lyrics and leave a comment on the lyrics box