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1 definition by buttermilk waffles and cream

 
1.
UU
A common establishment in a public or private university. While they may be under different names, the UU, or "University Union," is usually a common gathering place for students, and houses events, socials, workshops, and whatnot.
The water polo club had its annual social at the UU last night.
by buttermilk waffles and cream October 02, 2009