when you're on fire with whatever it is you're doing, but generally used for picking up women. it's basically a pimped out way of saying in the zone.
Mark: What up, playa? What you fit to do?
Antwan: Shit, I'm gonna hit the club and get some pussy tonight. I'm ridin' perk body zone.
Pete: Yo yo, what's good, G?
Johnny: You tell me. How you living?
Pete: Perk body zone, pimp.
Telly: These bitches be lovin' it every minute. They be lovin' my cologne, they call me perk body zone.