.1) A Valve boot-lick that worships at the hind-end of Gabe Newell and all others employed by the video-game software firm.
.2) One who irrationally defends the inept and fascist program known as Steam.
.3) An apologist for control-freak behavior demonstrated by software developers under the ruse of providing better service...which, in fact, is never provided at all.
e.g. - A Valve codemonkey gets drunk and runs down a young mother pushing her newborn twins in a baby carriage...killing them all. An "arrowslinger" would define this as an act of self defense or, at worst, a mercy killing.