Characters
North of Ventura Boulevard is hell’s waiting room.
— Johnny Drama · Entourage
Behind the line May contain spoilers.
Our reading
An editorial interpretation.
The speaker mocks the district beyond that boulevard as a dismal stopping place before damnation. Calling it hell's waiting room is comic exaggeration, expressing the view that living there means enduring tedious, grim limbo while something worse supposedly looms.
Context reviewed