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2.
Upper blackrock spire, a High level instance (dungeon) in the mmorpg game, World of Warcraft.
Looking for group to UBRS!
by Konrow September 19, 2005
 
1.
Upper BlackRock Spire, a high-level instance (dungeon) in World of Warcraft.
A:Wanna do UBRS?
B:Sure.
by Feranor September 21, 2005
 
3.
ubr
Initials of "You better recognize"
by IHS May 14, 2003