1 definition by Dylan Gerson

1

the act of playing Halo3 while sleepwalking, or attempting to.

Dude, i woke up with my 360 controller in my hand AGAIN. i think i might have halo3sis.

by Dylan Gerson October 21, 2007

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• © 1999-2021 Urban Dictionary ® • advertise • terms of service • privacy • dmca • bug report • help • blog • data subject request