See Ellery. Alternatively, see DoTA Allstars Forums.
killzor is too good at writing Guides, it's a miracle they aren't Premiumed.
To target and kill (or PK) a certian person continuously in any sorts of first person shoot em up or MMORPG (or any other style online game).
OMG! I am so gunna uber KILLZOR that Spankyxeon!