(Slang) - pronounced- Don't
know
I Don't know.
Also, you can use it as the same pronunciation such as these sentences:
I Don't wanna (produced/I du wanna)
I Don't
feelI Don't
think.....etc
If you told me ya dunno what urban
dictionary is
I would tell you it's one of the most amazing
complicated dictionaries with over 7 million words and definitions