I have to agree with Heinrich
This made my laugh my ass off. It was really hilarious! But, it wasn't because of the animation. It was because of the audio. I would have enjoyed it just the same without any visuals.
Now, the lip syncing needs some work. Take a bit more time putting each syllable in the exact right spot. It's really hard to do, but it looks so good when done correctly. I've definately seen worse, but it still could have been better.
The two things I did like about the animation specifically, you gave the characters' emotions. That's hard to do sometimes. The other thing I liked was the blood splatter. Good job on that.
I think it's funny how this is so well recieved, but in the audio portal, if you even sample a single word from pre-existing work, you are banned. Just something to think about.