1) Casey jones job 2) Engineering 3) Rail technology 4) Technology 1) Maglev 
Referring to a game's story being forced in a particular direction most often by the GM. Commonly perceived as bad form.
• (n.) The construction of a railroad; the business of managing or operating a railroad.
Rail'road`ing noun The construction of a railroad; the business of managing or operating a railroad. [ Colloq. U. S.]
Separating the threads as you are stitching so that they lay nice and flat on the fabric. This is generally done with two strands of floss.