Top Definition
In Halo 3, the act of driving a mongoose while having a sniper rifle and a shotgun, while your passenger has an overshield and rockets.
Guy: We just overrocksnipegoosegunned you right down.

OR

Activate formation: Overrocksnipegoosegun
by Walrai January 05, 2009
8 Words related to Overrocksnipegoosegun

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