Top Definition
An expensive, exotic, ridiculously fast, and generally impractical sports car, the kind that rock stars drive. Italian makes like Ferrari, Maserati, and Lamborghini are excellent examples of rockstarmobiles, but a convertible V8 Ford Mustang with all the features and options can also serve this purpose.
"As soon as he got a big record deal with Sony, he went out and bought this rockstarmobile Lamborghini. Hope the record is a hit or he's gonna be in deep shit."
by Danny Delinquent May 09, 2004

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