to be a bitch cat is to only want attention on your own terms and to not give a flying f$%^ about any one else. Other peasants are just around to feed you and worship you.
Essentially the new "smart ass"
Me: Hey Gladys, we accidentally left you at the grocery store.
Gladys: - fuck you guys; ALSO I THINK YOU'RE A BITCH CAT.
Also see "Grumpy Cat"