In a way it actually kinda describes him, something thats so long it defies imagination and could not turn in any direction.
For those that are scratching their heads its train talk of the wheel set arrangement of locomotives, the famous UP steam train out of Cheyenne Wyoming is a Challenger 4-6-6-4, the Big Boy a 4-8-8-4 so something like a 0-0-0-0 means it has no wheels, its not going ANYWHERE.
It's billed as a "4-8-2+2-8-4."