I get it popping for real, bitch I got my prescription
He is really talking about a gun and the prescription would be a gun license.
Rick Ross is a student of Hip Hop, so the lyric can also be interpreted as he gets the crowd dancing with his certified club bangers, for which there are many.
http://www.youtube.com/watch?v=HDMADrm_W_U He plays on the word ‘popping’ as well — it is a dance as well as the sound a firing gun makes.
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