Top Definition
A First Jumper is someone who listens to mainstream bands and claims to know EVERYTHING about them. However, they've likely only ever heard one song off of MTV or Fuse. They have no knowledge of the band itself really. They may run around and claim to know about them. When you ask about the band they might not even be able to name them. And if you ask their favorite song, they may also name the latest playing on radios and know NOTHING about the first two or three albums. However, they will ALWAYS claim to know EVERYTHING about the band. First Jumpers are ruining good music with their idiotcy.
Person 1: LIKEOMG!!!11!1 I LOVE AVENGED SEVENFOLD!!11!I LIKE KNOW EVERYTHING ABOUT THEM!11!1
Person 2: Oh really? What are some songs you like?
Person 1: Ummmmm...uummmmm...Oh you know, that one. And I don't remember the rest.
Person 2: Freakin' First Jumper...
by KC Trix June 24, 2006

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