Top Definition
Urban Dictionary Official.
The word UDO is definitely legit - it's UDO.
by ewgross May 31, 2010
1 more definition
1 Word related to UDO
Whenever one human being gives you a 'smartass' look or statement- legit
Person 1: Oh my God, why dont you just SMD!

Person 2: UDO!

Person 1: ...
by siicb November 23, 2010

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