(African American vernacular, slang) To steer one's vehicle from side to side while driving.
2005, Chamillionaire (featuring ), "", :Turn on my blinker light and then I swang it slow
2006, Trae tha Truth (featuring and ), "Swang", :I'mma swang, I'mma swing my slab lean to the left
2010, G. Washington, Karma from the Cradle to the Street, Xlibris (2010), ISBN 9781453596180, page 118:Caine pulled off burning rubber and swanging side to side.