Characters
You are the all singing, all dancing crap of the world.
— Tyler Durden ‧ Fight Club
Behind the line May contain spoilers.
Our reading
An editorial interpretation.
The speaker sneers that the listener is a showy, endlessly performing embodiment of worthlessness. 'All singing, all dancing' borrows the language of glossy entertainment, but here it decorates an insult: however energetic or impressive the display, the speaker says it amounts to crap, nothing special or valuable.
Context reviewed