Where can I buy a roaring kitty?

Excuse me, I couldn't help but notice your mention of a "roaring kitty." Could you perhaps elaborate on what exactly you mean by that term? Is it a specific type of cryptocurrency, a unique collectible, or perhaps a slang term for something else entirely? I'm curious as to where one might go to acquire such an item, as I've not encountered it before in my work in the cryptocurrency and finance field. Any guidance you could provide would be greatly appreciated.