I don't know if you were just using this as practice or not, but calling a number that a friend of yours got is almost guaranteed rejection. I mean for all she knows you just randomly dialed her number or got it from the phonebook. To her you are just some crazy mofo.
I feel you came off way too desperate, but unfortunately that is the kind of frame you are in when you dial a girl like this.
Part of being C&F is implying that the girl likes you and you are trying to keep her from jumping you, but you weren't able to do that at all here. I mean at least she was nice enough to go along with the phone call a bit, because I could tell she was a bit shocked at the beginning (i.e. she was thinking "who the hell is this???")
I'd recommend you only call women who's number you got yourself. At least then you will stand a chance. Don't worry too much about being C&F over the phone, just get a date (like you were trying on this call), then do more C&F on the date. If you cold approached her yourself and got the digits, your chances of getting a date are
much higher than in this situation.
Also 4 year isn't much of an age difference, so the mention of George Jefferson, while hilarious, may not have been needed.
Regarding your rap, I'm sure there was little belief that you were Jewish.
