A pimp disc
is a CD or DVD full of fanfiction, fanart, character info, story info, etc of a specific fandom
. They are used to encourage people to join that
Mary: Anne sent
me a pimp disc
of 'Prince of Tennis' last night.
Ella: Oh, I've heard of that anime. Is it good?
Mary: Well, the disc
had the first episode and some fanfiction, and it looks pretty
cool. I think I'll ask for the box set for Christmas.