When a material possession is so brand new and cool-looking that it it's almost like it's a newborn child; pure.
Things that could be baby fresh:
Roger: Shit, you see Kenny's new Aston Martin Nikes?
Tom: Yeah, them motherfucker's don't come out til' 2014.
Roger: That shit's baby fresh, jo.
Wanda: Fuck Roger.
Tina: Fuck Roger? I thought you still liked him.
Wanda: Dude looks dirty as hell.
Tina: Girl, he just got a phat ass fade, he's lookin' baby fresh.
Chandler: Yo, this weed better not be fucking huff.
Dealer: Relax, this is Grandfather Purp. It's baby fresh.