Citations:gangstafy

Verb: "(slang) to make or become characteristic of a member of an urban gang and/or gangsta rap"

 * 2013, M. T. Richards, "Larger Than Life", Phoenix New Times, Volume 44, Number 7, 14 February 2013 - 20 February 2013, page 40:
 * A few years before that, he pulled off the mother of all undoables, gangstafying Starship’s plastic 1985 hit “We Built This City.”