What is the rarest boy cat name?

I'm curious, what exactly constitutes the rarest boy cat name? Is it a name that's hardly ever used, or perhaps one that's so unique it's practically unheard of? And how does one even determine the rarity of a cat's name? Is there a database or a list somewhere that tracks the popularity of different cat names? Or is it simply a matter of personal opinion and preference? I'd love to know more about this fascinating topic and the factors that contribute to a name being considered rare.