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1.
A New York City slang term for a marijuana delivery service that uses motor vehicles to delivery the marijuana directly to its customers.
Nick: Do you want to pack a bowl?
Steve: We're out of weed.
Nick: Time to call the murder car.
by goodprop April 06, 2011
 
2.
The PC/Xbox game, Halo.
Let's go play some Murder Car.
by Genin October 01, 2004