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when one owns the key to narnia, the 'mine' is said to have 'mineosity' over this key, they are the keeper of keys or a sort, similar to hagrid.
Traveller 1: Hey dood i need to get into narnia! i her your the mine, can i have mineosity?

Mine: No dood, i want mineosity until i die! peace out ladyboy.
by The ninja and her dragon ham July 25, 2011