A combination between the word "Nice" and the suffix "age."
Meaning cool, nice, awesome,...etc.
Josh: "Whoa! That babe from the beach totally gave me her number!"
Hipster: "Dude! Nicage!"
Josh: "I know! Nicage indeed!"
the act or process of being nice. used to describe and action or fill blank pauses after statements
I bought a '90 accord the other day
Crap, im hungry
lets go to in'n'out