'Barbary Coast' definitions:

Definition of 'Barbary Coast'

(from WordNet)
noun
A part of a city that is notorious for gambling dens and brothels and saloons and riotous night life (especially the waterfront of San Francisco after the gold rush of 1849); "we'll tolerate no Barbary Coast in this city!"
noun
The Mediterranean coast of northern Africa that was famous for its Moorish pirates