Swagga Jackin Share definition Flag The act of stealing someone's style. To copy, pose, or imitate someone else. Your too lame to have your own style. "Maan all theez punk ass bitches be Swagga Jackin, get your own shit." Swagga Jackin by The Theoretically Correct May 20, 2009 0 0 Get merch Get the Swagga Jackin mug. Buy Now — $32.95 See more merch