The short: a bad handwriting font.
The long: Ugly Dave is not a 'nice' font… it's pretty much the bare minimum in terms of handwriting. It's messy and childish and some may even call it yuck. On the positive side – it's almost legible!
However, if your handwriting is going to be bad, why not make it consistently bad? Don't worry, Ugly Dave has your back. You can now adorn your designs with writing that makes it look like you never went to school! Awesome.