Define 815 Meaning

815 is a key number in the mysterious and addictive television program that is 'lost'.
This number is the flight number of the plane along with many other things linked with the island and its characters.
815 has become a number universaly known as mysteriously spooky and beyond coincedence.
It is said 'eight fifteen' not 'eight hundred and fifteen', by the way.

Bowel Movement (v), dookie, dump, the act of pooping.

Not unlike the evolved meaning of 420; this began, locally, when a manager (at an undisclosed business) always performed his morning ritual at exactly 8:15 in the morning. Everyone in the company; and, by extension, ex-employees; began describing their potty time as "815" (pronounced Eight Fifteen).

Call sign of the outpost in Starship Troopers 2.