Top Definition
Describing the feeling of being pouty or upset. Stems from the sound one makes when pouting one's lips.
Can be used as an adjective or verb.
I failed my test today; it makes me so duu.

Duu! I can't watch the movie with you guys tonight!
by chenxjen July 27, 2010
Ghetto meaning of the word "dude"
Man duu im finna go do dat
by Lindsey4real October 18, 2008

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