To b a "G" or gangsta and carry around firearms in yo hood to shoot people with. Bringing heat.
When Ludacris don't get his drugs he will attack his dealer with a 9mm therefore he packed a mac.
by Xzile ya heard April 12, 2007
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To acquire and store on ones person a Mac type machine pistol.
That's why I pack a mac
by Mister Miggins Moop September 19, 2017
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