A person who can sucessfully identify obscure music a DJ plays. A hardcore trainspotter can take it a step further and identify the source of obscure samples.
Trainspotter: "Thats track B off of the first pressing of So and So record"
Friend: "You're such a trainspotter."
by ryan ill December 17, 2004
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someone who obsessively collects bits of useless information

see also: nerd.
The trainspotter watched Beat the Geeks and took notes over questions missed.
by Bubba Zanetti April 14, 2005
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The term 'trainspotter' stems from exactly that......he who spots trains. A strange affliction. These are characteristically 30 - 40 year old men who still live with their mothers and quite possibly indulge in dubious sexual practices involving them. Gathering on station platforms in all weathers and wearing old anoraks and bobbly hats, they note the make, model and characteristics of each train that passes. Thus 'trainspotter' has come to mean any obsessed character who insists on talking about nothing but their chosen specialist subject. In my experience, the 'trainspotter' or 'pothouse' almost always manifests itself at the aftershow hospitality.
trainspotter as - "you are a trainspotting nutter" - In other words, someone who is psychological unstable.
by RRS September 6, 2007
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Person who spots trains for a hobby. Usually the preserve of sad anoraks.
"When I was younger I had this really sad trainspotter approach to bands and collecting records."
by Nupe January 7, 2004
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A person who watches a DJ spin records.
Everyone was crowded around the DJ booth trainspotting while he dropped his set.
by TC March 23, 2004
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CoolGuY283432532: I LUV LINKIN PARK THEY ARE BOMB
Trainspotter: Linkin Park is sh!t, you don't know anything about music, please grow some taste before you talk.
by PKM KCCORRRB May 6, 2004
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