Letra de Doc Brown vs. Doctor Who
Doctor Who (Tenth Doctor):
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 a way out of Hill Valley!
And 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 rhyme!

Doc Brown:
Great Scott! 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…

Sarah Jane Smith:
Doctor…

Doctor Who:
At least, this version of me…

K-9:
Doctor…

Doctor Who:
Perhaps you’d like another…

Sarah Jane Smith:
Doctor…

Doctor Who:
Prepare to meet your…

Density! Hahahahaha!
I’m a mystical medical doc at the pinnacle shifting my physical form
You’re a possibly pedophilic individual who should have 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 you’re a pitiful hillbilly hangin’ with an oedipal kid who’s a bawk bawk chicken!

Marty McFly:
Nobody calls me chicken!

DB:
This is between us, Scarfy, don’t try to out-rhyme me
You’ll find I’m as grimy as any slimy time-limey
I’ll use your port-o-potty time machine as my latrine
You’re not a cat with nine lives, you’re a pussy, with thirteen!!