To walk & run. Particularly applicable to newcomers to physical activities who are unable to run for any length of time. "Wunning" is the act of walking with the occasional burst of running for a few seconds, or minutes at best.
some say it means 1 but i say its means a fine pimp male dude boi that dont play aloso young wun whos fine as hell aslong as he dont open his mouth like j kwon