(n.) a rare, warm, soft, very sweet and tasty delicasy, encased in a slightly tough shell, (which can become softer and more tranlucent to the experienced connoisseur); to be desired, savoured and appreciated by those with a taste for fine things.
Colloquial term to describe New Zealanders and only New Zealanders that have sexual intercourse with sheep (sheep shaggers) or fantasize about the act. Also applies to those who wish to be on the receiving end of the animal.
Usage is centralised around the state of Victoria in Australia.
We have finally discovered the reason for the strange behaviour our sheep have been exhibiting, apparently a nargi has been sighted in the fields.