Let my convertible marinate on the avenue
Mami, that's half a million, I'm living la vida rapido
Ross is pointing out to the girl that he’s with that his car is worth so much because he’s living the ‘fast life’ (translated to ‘la vida rapido’ in Spanish); the term ‘mami’ is generally used in the Spanish language as well.
Rick Ross is a Miami native, and Florida generally has a large Cuban/Spanish-speaking population, which explains the dialect in these lines.
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