A term used in Call of Duty Modern Warfare 2 for those who use the javelin lock on to kill unsuspecting victims. Those who use Javelins on playlists such as Search and Destroy and frequently called this.
Wafflecopter365: OMG DAMN IT, WHAT A JAVELIN JERKER!
Dbagdevin431: HAHA you blow!
Jacksonsboytoy: my gosh... i'm such a Javelin Jerker.