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 cla**
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, well, never mind
Let's just say there's an infinite number of me
Simultaneously kicking your a** with rhymes
Doc Brown
Great Scott, you're great... not, I spit it hot
And 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 s**
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 (Exterminate)
Tenth Doctor
I'm going to die (Doctor)
At least, this version of me (Doctor)
Perhaps you'd like another (Doctor)
Prepare to meet your
Fourth Doctor
Density, hahahahaha
I'm a mystical medical doc at the pinnacle shifting my physical form
You're a possibly pedophilic individual who should've never been born
You got your knickers in a twist while you're s**ing 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 (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 p**y with thirteen