L33Tspeak for "Great Shot!"
Derived from a popular 1st person
shooter game Call of Duty, where three buttons will produce a specific quick message. For example V-2-7 means "Need reinforcements!"
Lane:
Joel, there's someone shooting you from behind!
Joel: *
spins around, feeds a single bullet to the
fucker's head*
Lane: Woah dude, V-3-5!!!