A copycat, biter, or plagairizer. One who rips off song lyrics from another, particularly rap/hip hop lyrics. Term popularized by Harlem rapper Cameron "Cam'ron" Giles in refrence to Brooklyn rapper Sean "Jay-Z" Carter and his penchant for using lyrics by Notorious B.I.G., Tupac, Slick Rick, Rakim, and others. See the song "Swagger Jacker" by Cam'ron for more info.
"No wonder you retired, there's nothing left to steal from... swaggerjacker!" (Cam'ron)
Copycating done by a motherfucker (usually bitchmade) who has no original sense of style, genuine charisma, or game of their own, who in actuality tries to hide their lameness by copying the style of "fre$h"/popular individuals that he/she hates on the low. (orgin NYC)
That swaggerjacking ass nigger tried to hate on my whole style last week and this week u would of thought this bitchmade nigga my fuckingtwin!