Top Definition
A small downloadable applicaiton avialable for forums which allows memebers and guests to converse, alot like an open MSN or AIM messenger service. It is free.
Hey Ali, C box now, we need to talk.
by Howlie July 10, 2008
Short version of chilly box.
Dude, I went to the mustang water slides the other day. It was c box.
by Nate Breen May 30, 2006

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