Cake taker.
The biggest bitch you've ever known. A girl who is so over the top, out of control terrible to you that she takes the cake.
Dude 1: Hey remember that Kelsey girl from that party last night? What a bitch.
Dude 2: Yeah dude she was a total cake taker.

Person 1: Wow. I've met some bitches in my day but you are totally the cake taker.