In San Francisco, The address of the jail is 850 Bryant Street. People in San Francisco say "Eight Fiddy" when they're talking about jail.
"I ain't trying ta go ta eight fiddy"
"You know he down at eight fiddy"
"Tryin' ta keep my ass outta eight fiddy"
"You know he down at eight fiddy"
"Tryin' ta keep my ass outta eight fiddy"
by SF Annonymous March 3, 2008