What does DUNNA mean?
i don't know
Other definitions of DUNNA:
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How to use the term DUNNA:
There are no example uses of DUNNA at this time. We would greatly appreciate your contribution if you would like to submit your own!
More slang terms:

IDKT
I Didn't Know That

ETHOM
Excuse the hell out of me

OOTQ
Out Of The Question

HAWTLW
Hello And Welcome To Last Week