Cat back talk

What a cat does when it's told not to do something and it meows immediately after.

I tell my cat not to use cat back talk because it's disrespectful to their owners, just like a kid.

Three Cats Back

A Macintosh user who is still using Mac OS X "Panther", in spite of there now being two newer versions (Tiger, Leopard)

Pal: Hey, you load up Leopard on your machine yet?

Me: Nope...you can call me Mr. Three Cats Back!