packed a mac Share definition Flag 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. packed a mac by Xzile ya heard April 19, 2007 0 0 Get merch Get the packed a mac mug. Buy Now — $32.95 See more merch