To traverse great distances on foot in search of the nearest diner or 24 hour snack place. Usually executed at odd hours of the night. Not to be confused with fourthmeal.
Mostly executed in densely populated areas. (see "suburbia")
Towns and small cities that have little or no 24 entertainment facilities are subject to a food quest.
The point of a food quest is generally exploring the vast myriad streets and maze-like neighborhoods after midnight, acting like a squad of ravenous hungry idiots without fear of public exposure or being caught by cops.