Toilet humour
Come on dude, you know you can make better jokes than that(hopefully). I think most people out grew poo jokes when Ren and Stimpy ended. Any way onto the review.
The graphics weren't too bad, they were overly simple. I know that works in some cases but I'd like to see different types of mouths other than ovals and the little grin.
I only gave a 5 for the sound mainly due to lip sync, it looked incredibly lazy and didn't fit the words being spoken very well.
I can see that you have potential but in your next cartoon I suggest using humour that can be enjoyed by a wider range of audience as toilet humour limits you to a certain audience.
I also suggest using more than 2 backrounds. You could just have 2 different locations but have it set with different angles to make it more interesting as looking at the same thing is just boring. Good luck with your next movie.