Top Definition
Unwaivering Confidence and Unmitigated Gall. The ultimate compliment for someone who never backs down in the face of an argument and is willing to utilize every weapon in their arsenal in order to always come out on top. Usually tagged to brazen young attorneys or the sneakiest of seasoned veterans.
That new associate is full of UCUG.
by Reno Cova May 17, 2007
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