The Passage is from Jerusalem by Jez Butterworth. Ginger is a DJ and he never had the chance to work as a DJ and he is high at the moment. According to these lines, what's these phrases means: "public awaits", "I’m roasted", "Boss the stone" and "boss it"
DAVEY. They’ve disbanded. 2 Trevs is no more. They’ve gone home. You want to get up The Cooper’s car park. Your public awaits.
GINGER. But… I’m… I’m… I’m… I’m… I’m… I’m… I’m… I’m… I’m… I’m…
DAVEY. It’s your big break, mate.
GINGER. I’m roasted.
DAVEY. Use it, mate. Boss the stone, mate. Get up on top and boss it. Your canvas is The Cooper’s car park, your brush Beyoncé and ‘The Birdie Song’. It is time to bring the ruckus.