It was Me, L Boogs, and Yan Yan, YG, Lucky ride down Rosecrans
Rosecrans is a major street in the Los Angeles area. Notice how it runs straight through Compton.
L Boogs, Yan Yan, YG, and Lucky are the street names of the guys he was with at the time. He uses their street names rather than their real names to paint the gang/hood picture of the song.
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