1 definition by Headmaster Atlus
A sexual position wit one guy on the bottom with a girl sitting on top. There is another guy with his dick in her ass and another guy with a dick in his ass. There can be any number of guys daisy chained together in this fashion forming the train. All participants wear wizarding robes.
Harry shifted uncomfortably under the weight of the massive Hogwart's Express that had formed on top of him as Hagrid insert himself into Draco positioning himself as the new caboose.
by Headmaster Atlus January 9, 2010