Noob Saibot, from Gameolio, writes:
With the Call of Duty series and some other games, came the term known as Noob Tubing. What is it exactly you might ask? Well in a first person shooter there are weapons that come with a grenade launcher attachment. This attachment can easily be fired at the general vicinity of your target and allow yourself to score a kill, or two, possible three if you are a real jerk.