Berkeley Boys up on the map
To be “up on the map”, street-wise is to be well known. If you are reading this footnote there’s a good indication, that you probably know about Lil' B’s rap group The Pack.
https://www.youtube.com/watch?feature=player_detailpage&v=5fR2OgGbKds To be literal, map is the viewpoints of location and since Lil B is a California rapper and Berkeley is a city in California, you can tell that he is from Berkeley,CA.
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