The Zaand (short for Zaaaaaaaaand-9 a's) is the being produced after extensive amounts of boredom inside one's mind, that can become a split-personality. There is a physical being known as The Zaand (or Da Zaand) known to be somewhere in the UK. The split-personalities are known to resemble it.
Jack: Ever since that day at school when we had the 6 hour assembly because of the fire alarm, I've been feeling different during certain random times.
Sam: Your mind might have produced a Zaand.