j/k is common'ly used on most internet based
chatting advocates it means"just playing,or just joking"playing aroundmostly
used in forums or online games.someone says
a de`meaning sentence to some one and after 3 seconds, after the other person is already steaming
with anger the offender types i am j/k its really stupid in my opinion but it will never
fail to be typed, sometimes said outside of the web'.