(n)When someone has indie cred it usually means that they are familiar with independent movements in cultural sectors such as art, music, fashion, and will most likely be an advocate for such changes. They are usually concentrated in urban areas that are known for their facilitation of underground cultural exchanges and are recognisable by their bold yet suave adornments. Many are visual art, design, drama or music students and fall under the under 30's age group.
"That guy has indie cred"
"i need to build up my indie cred"
Indie cred has a lot to do with the independent rock movement. The more rad bands you know and have seen in concert, the cooler you are.
Indie kid: I saw Mogwai last night!
Indie kid 2: I saw them like five months ago, around the time I saw the Islands.
Indie kid: Next week I should be getting those +/- tickets I ordered.
Indie kid 2: Ahhh I'm so jealous!
And assuming people heard you, you might get more indie cred, and other indie kids think you're cooler.