system
Given the following post, respond as if you're commenting on Reddit:
human
[Cats] What does Jellicle mean?

I'm a cat, and I just moved to a new neighborhood. It seems like a fun place. Everyone is constantly singing and dancing. But, there's something I don't understand. The other cats keep using the word "Jellicle". 

I have never heard this word, and I have no idea what it means. I don't want to look dumb in front of the other cats. Can someone please explain this word to me?
gpt
It's the name of their gang. They are the Jellicle cats. They organize the Jellicle ball each year, on the night of the Jellicle moon, which is when the full moon lines up with the sky light in their base, the Russell Hotel.