Here's mine: (I added spoliers because there are a few words that the easily offendable types won't like)
Spider vs Cave Spider.
Spider: Look over here you little blue *****,
Our sizes represent the girth of our dicks,
Only way you can win this is with extraordinary luck,
So you got poison?
I got my ***** on my back,
Yeah my boy Skelly's gonna back up this track:
This badass Arachnid rapper,
His beats'll get ya pumped,
But I got my bow that makes all the humans jump,
You got your ***** little poison,
But a bucket o' milk, and you just toyin'.
Hangin out on roofs,
Da hell is up with that?,
Only way you scare a human's with your boney bumboy on your back.
You think think you're hot cause you're bigger,
Or is it cause you a *****?
Compared to me,
You're cold like an Arctic Winter.
Im a spida, a rida,
a skeletal fighta
speed so hurried when i climb up yo walls
range has you worried when shoot you down the halls
double the hp, and double the powa
the top will burn up, but 8 legs remain at any hour
im not like others, i spawn so rarely
survivors walk away oh so barely
so dont mess around when you see the black and red eyes
try to claim two kills, will lead to your demise
i rose from the dead twice before, and ofcourse i could once more
because im tough and resilient like an iron ore
16 limbed monster on da hill top
but i only need one arrow to make your body drop