A Girmunkinfyer is when you're playing a
game called NFL Street and you pitch the ball 9 times get 4 stiff arms a fumble and get the ball back and score a touchdown with 50,000+ style points in one play.
A Girmunkinfyer is also when in dodgeball you throw the ball so
hard you
break 4 ribs on the other person and cause a concussion and a coma.