Well, this is clearly one of those novelty songs which is all about fun! 
One thing I think you need to take a close look at is vocal clarity. It’s really important with something like this that we - the audience hear every word… and to be honest I’m struggling to hear many during the sung parts. This is quite challenge when you’re the one mixing because you of course know the lyrics so your brain kinda compensates, but for me, and likely others… well… I’m certainly missing a lot. E.g. At 1:00 - 1:30 I have pretty much no idea what’s being said/sung - in fact I’m not sure I understood a single word!
All that aside though, I certainly enjoyed the spirit of the song! 