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1.
The act of getting your dick sucked while gaming on Xbox 360.
SEXBOX 369

(Use just Sexbox when using it as a noun)Hey dude I just got some great Sexbox from Kali McGraw last night.

(Use 369 when using it as a verb)Kali McGraw 369ed me last night in the back of your car.
by Big Sillay and Big Ellay December 10, 2008