The Torque Bow from Gears of War.. Um...
Any type of suicide bombing like throwing a plasma grenade on yourself and running at someone (Halo 3 )
OR the funnier way.. In forge have a friend throw a spike or plasma grenade at you, go monitor, and fly at an enemy
You should know the conclusion
BIGGEST NOOB WEAPON!!
Running ppl down with cars... SO noobish.. >>