From online games, deriving from "Player Killing". A PKer is one who kills other players for the enjoyment of killing them or causing them grief. See also RPK or RPKer.
Watch out for Riv when you get in Diablo, he's a known PKer.
The abbreviation "pker" stands for "player killer" and is most commonly used in online games where players fightone another head-to-head, such as Diablo and Runescape.
The written-out sound of a gunshot, used when you want to express suicidal thoughts. (Usually jokingly.)
My mom kept going on and on and on and on about me being disrespectful and how it's such a disappointment that I can't be polite to her and I was just like pkew pkew pkew the whole time.
History was horrible today. *put two fingers to temple* Pkew pkew pkew.