From PK (“player kill”) + -er.
PKer (plural PKers)
- (video games) Abbreviation of player killer.
2000 February 17, K. Laisathit, “Re: Verant planning a Star Wars MMORPG?”, in comp.sys.ibm.pc.games.rpg[1] (Usenet), message-ID <88hndr$q8e$1@nntp6.u.washington.edu>:How could you prove beyond any doubt that the person is a die-hard KSer or PKer?
