Game Fuel is a delicious soft drink offered from Mountain Dew in commemoration of Halo 3.
Alternatively, a term used to describe what Master Chief is drinking when he kicks ass. Also used when other posers try to imitate Master Chief by making similar moves to him with the day vote.
eg. "Master Chief found his GAME FUEL." - when he beat the crap out of Yuna, Vercetti, and PaRappa at the same time.
"Master Chief is out of GAME FUEL..." - when he started to falter a bit against those fools Ganondorf and Luigi
"Sora found Master Chief's GAME FUEL" - when Sora thought he was gonna be cool and beat the crap outta Squall when school let out