Short for Black Wing Lair. A high level instance in WoW, (world of warcraft), filled with various high level epics that no one but the big guilds and clans are able to obtain.
That guild Eminence has run BWL so many times that all of their characters have their tier-2 epic sets.
by iceman11280 April 05, 2006
Harry Potter is the BWL
by thatguyudontknow August 08, 2016
by LanceVance June 06, 2007