1 definition by RS_squad
any act that has something menacing about it. it's also a philosophy in a sense that any action you take is being done for the mere joy of feeling invincible.
See, when I roll in my Porsche 930 Turbo, and I'm cruising down the Blvd, these people respect the power that I bring, both in style and substance, that is gangsterism.
by RS_squad June 1, 2007