Engaging in the act of Player Killing in a multiplayer game through legitimate OR illegitimate means.
"Those jerks were pking rookies in the newbie area for hours until an admin finally showed up and kicked them out."
by Pratt October 6, 2005
the act of participating in parkour
'you free tomorrow?'
'no, i'm pking form eleven 'till two'
by Flamsmark January 4, 2005