A very ignorant and floozer way of calling a chick a regular bitch...but you got to say it all deep and trashy when you call it out...just to get to the core meaning...
is to tell someone or something that they are a bitch when you really mean that they are a biiiitch (higher pitch on the I's and also you say it not as if it were a actual bitch)
your dog is a pure breed bitch, biiitch!!! (so in other words you are saying the biiitch to the person who is listening) biiiiiitch