I never knew and always called it a moving hallway.
so anyways I was gettin' off da plane from Orlando to San Anton' and I trip and my leg slips between the plane and moving hallway
then the flight attendants all flip out like
'OH MA GAWD DONT MOVE DONT MOVE WE'LL GET YOU OUT'
and I was like
so I tripped on an airplane. the end. wtf xD
/had to share