(v.)- To shit violently in reaction to eating food purchased from a Manhattan street vendor of Middle Eastern descent. Usually this action takes place within 4 hours of consuming the "food".
The feeling one gets in one's stomach before needing to halal is referred to halalitude, meaning that the IED is about to detonate. Preferably one can make it to a restroom in time to halal hastily into an armored porcelain bowl. Even in these circumstances, bloodshed is almost certain.
Mark: "Oh fuck, I'm not feeling too good. I might halal myself on this train."
Chris: "Why the fuck did you buy that gyro from the Hajji stand outside of Penn Station? You know that dune coon was just selling you an IED to drop down your stomach and give it some real halalitude..."
Mark: "I was drunk and starving, what do you want?... Oh shit, here comes the suicide bomb..."