Whip Fresh can literally mean that you look good. It can also mean that you stay lookin' good, you will always look good, and you'll always be Whip Freshed. And anybody that doesn't look as fly as you, won't ever be as fly as you.
If somebody is standing next to you and they look so dirty, here's an example of what to say...
Whip Freshed Person: "Ay, yo. You can't be standing right next to me. You gotta move."
Dirty Person: "Why?"
Whip Freshed Person: "Because you're so dirty and I'm just Whip Freshed!!!"