Portuguese Tobogan Ride
It is the purposeful or luckily fallen into position in which one mounts the sled/other rider, who is prone to the declining staircase (preferably carpeted), and continues to John Crapandy down to the ever awaiting crowd which is together chanting "Jamaica we got a doopchute team!"
And that's when Lydia told her to make sure to wear a chinpad if she and Doug were to perform the ever daunting, but wholesom act of the Portuguese Tobogan Ride (PTR)