Dull Roar

I'm studying, Josh just got home and we're going out later so he's decided to take a nap.
J: Well, I'm gonna take a nap for a little bit hon, try to keep the party to a dull roar.
E: Yeah, I'll try, but you know me.
J: Try to keep the freestyle rapping to a minimum.
E: The day I freestyle rap while you're napping...
J: Freestyle napping!?
E: That'd be like a competition where you see if you can fall asleep in random places.
J: They call that narcolepsy.
E: Yeah, well narcolepts have an unfair advantage.