Doc Brown Vs. Doctor Who

Doctor Who:
Ooh, actually, if you don't mind, it's just "the doctor"
Doesn't even really matter who. who am i even talking to? oh yes, you!
The wannabe einstein, minus the 'stache
Travels through time but with no class
I'm saving the world while you dilly-dally
You can't even invent your way out of hill valley!
Calm down, will you? everything is going to be fine!
You're not going to tear any wonky holes in any fabric of space and time
Actually, it's a lot more like a rug, really, oh well, never mind
Let's just say there's an infinite number of me simultaneously kicking your ass with rhymes!

Doc Brown:
Great god! you're great...not! i spit it hot
Then generate way more power than 1.21 gigawatts
I'm not sure what sort of scientific authority you purport to be
But i'm a real doctor! where'd you get your degree?
Despite all your companions you couldn't be having less sex
I don't know what's lamer: your fans or your special effects!
You don't get another turn to debate, time to face your permanent fate!
Now dalek my balls

Dalek:
Exterminate!

Doctor Who:
I'm going to die

K-9:
Doctor

Doctor Who:
At least, this version of me

K-9:
Doctor

Doctor Who:
Perhaps you'd like another

K-9:
Doctor

Doctor Who:
Prepare to meet your

Doctor Who:
Density!
I'm a mystical medical dog at the pinnacle shifting my physical form
You're a possibly pedophiliac individual who should've never been born
You got your knickers in a twist while you're sucking on my piccadilly, but i'm a lot lot different
Cause your a pitiful hillbilly hangin' with an edible kid who's a bawk bawk chicken

Marty McFly:
Nobody calls me chicken

Doc Brown:
This is between us, scarfy, don't try to outrhyme me
You'll find i'm as grimy as any slimy time limey
I'll use your porta-potty time machine as my latrine
You're not a cat with nine lives, you're a pussy with thirteen