Someone who is addicted with riding Amtrak trains and after riding them, wants to ride them again, often blowing their money for rides
“Bro, Did you hear, Justin is an Amtrak-Addict, every time he rides Amtrak, he wants to go again!”
When someone gets a train run on them, specifically of the anal variety
Person 1:"how was your 32nd birthday?"
Person 2:"Amazing! I had 11 guys over and they gave me an Amtrak Stromboli!"